Chapter 7 Review (AM7)

15x+60

10) The perimeter of a triangular-shaped amphitheater is (75x + 90) yards. The lengths of two sides of the amphitheater are (35x - 10) yards and (25x + 40) yards. What is the length of the remaining side?

72x-24

13) The width of a rectangle is 6 units and its length is (6x - 2) units. What is the area of the rectangle if the length is doubled? (Area = length ● width)

18x-162

14) The width of a rectangle is 3 units and its length is (𝑥−9) units. What is the area of the rectangle if the length is tripled and the width is doubled?

4(3x-4)

15) Factor 12x-16 using the GCF

4(-3x+16) or -4(3x-16)

16) Factor -12x+64 using the GCF

7.5x+5

19) Write an expression to show how much greater the cost is for a weekend ticket than a weekday ticket.

24-6x

2) 6(4-x)

-20x+36

3) -4(5x-9)

h+14

4) (4h+2)-3(h-4

4c+10

5) (3c+4)+(c+6)

9x-5

8) The side lengths of a triangle are (2x + 1), (4x - 10), and (3x + 4). Write a linear expression in simplest form for the perimeter of the triangle.

16x-12

9) The side length of a square is 4𝑥−3. Write a linear expression in simplest form for the perimeter of the square.