Percent of Change 7.4D

The price of a cell phone was reduced from $400 to $350. By what percentage was the price of the cell phone reduced? (7.4D, RS, RC2)

• 12.5%

• 14.3%

• 25%

• 85%

The price of a video game was reduced from $60 to $45. By what percentage was the price of the video game reduced?

• 15%

• 25%

• 75%

• 40%

This year, a vintage corvette sells for $50,000. Next year, this same car will sell for $55,000. By what percentage will the price of the corvette increase? (TEKS 7.4D)

• 10%

• 55%

• 5%

• 100%

The price of a television was reduced from $250 to $200. By what percentage was the price of the television reduced?

• 20%

• 25%

• 80%

• 50%

Amanda increased the amount of protein she eats every day from 48g to 54g. By what percentage did Amanda increase the amount of protein she eats?

• 11.1%

• 88.9%

• 112.5%

• 12.5%

The math department at Clark Middle School used 9 containers to store 216 calculators. Each container holds the same number of calculators. How many containers would be needed to store 72 calculators? (7.4D, RS, RC2)

• 24 containers

• 8 containers

• 3 containers

• 6 containers

On Wednesday, 30 students attended afterschool tutorials. On Thursday, only 6 students attended. What is the percent of decrease in the number of students who went to tutorials on Thursday?

• 20%

• 80%

• 40%

• 50%

Triangle ABC is similar to triangle DEF. What is the length of DE? (TEKS 7.5C)

• 15 in

• 18.2 in

• 19 in

• 28.6 in

There are 24 students in Mr. Reyna’s 1st period class. Each student participates in exactly one extracurricular activity.
·      $\frac{1}{8}$    of the students are in the band
·       $\frac{3}{4}$  of the students are in athletics
·        The rest of the students are in the library club
How many of Mr. Reyna’s students are in the library club? (7.3B, RS, RC2)

• 13

• 8

• 6

• 3

A bicycle helmet is priced at $18.50. If the sales tax rate is 7%, what is the total cost of the vicycle helmelt including the tax?

• $18.57

• $19.80

• $12.95

• $25.50