### 9-7: TEKS Practice

• 1. Emily and a friend bought two tickets to see a soccer game. Each ticket cost \$8.25. The friends paid a total of \$24.50, which included a fee per ticket for parking near the stadium.

• a. How much did each friend pay for the parking fee?

• b. What is the parking fee as a percent increase in the cost of a ticket?

• 2. The number 360 is increased by 25%. The result is then decreased by 50%. What is the final number?

• 3. Justin has \$24 to buy a gift for his cousin, Julianne. He found a gift for \$22. With 5% sales tax added on, will Justin have enough money to buy the gift for Julianne? If so, how much will he pay?

• 4. Two friends, Horacio and Jenna, bought two tickets to see a play at the local theater. Each ticket cost \$17.25. Each friend donated \$1.00 to the theater's youth program. The friends paid a total of \$40.50, which also included a convenience fee.

• a. How much did each friend pay for the convenience fee?

• b. What is the convenience fee as a percent increase in the cost of a ticket?

• c. Find two more percents that you can describe as percent increases in a ticket's cost.

• 5. A band expects to put 16 songs on their next CD. The band writes and records 62.5% more songs than they expect to put on the CD. During the editing process, 50% of the songs are removed. How many songs will there be on the final CD?

• 6. Brett hoped to get 100 pumpkins from his garden this year. Since the weather was favorable, 20% more pumpkins grew than he expected. Unfortunately, animals ate 30% of all the pumpkins that grew.

• a. How many pumpkins were left?

• b. Is the final number of pumpkins more than or less than he hoped?

• 7. Emma saves 10% of her weekly earnings for living expenses. She usually makes \$560 each week. This week she made 10% more. Emma incorrectly claims that she has \$560 left for spending money this week.

• a. Calculate the amount of spending money Emma has left for the week.

• b. What error did Emma likely make?

• A. Emma used the percent saved for living expenses only to calculate the final amount.

• B. Emma used the percent increase in salary only to calculate the final amount.

• C. Emma assumed that if the percent increase in salary and the percent saved for living expenses are the same, the final amount does not change.

• D. Emma assumed that if the percent increase in salary and the percent saved for living expenses are the same, the final amount doubles.

• 8. Ron wants to buy a video game with a selling price of \$48, on sale for 50% off. The sales tax in his state is 4.5%.

• a. How much will Ron have to pay in all?

• b. If he has \$25, can he afford to purchase the game?

• 9. Kyrsten and Samantha are roommates who split the cost of rent and utilities (electricity, water, heat, etc.) evenly every month. Each roommate pays \$357.75 for rent. The roommates pay \$849.50 per month for combined rent and utilities. Kyrsten wants cable TV. She will pay the \$52.00 cable bill fully each month. What is the cost of the cable as a percent increase of Kyrsten's utilities cost?

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