Education Theresa wants new carpeting for her family
room. Her family room is a 12 ft by 21 ft
rectangle. How much carpeting does she need
to buy to cover her entire family room?

252 ft2 (squared)

Step-by-step explanation:

area= a x b

area= 12 x 21

area= 252 ft2 (squared)

answer is 8x+24

area of vanessa's patio = length × width

given, length = (3x² + 5x + 10)

width = (x² - 3x - 1)

area of vanessa's patio = (3x² + 5x + 10)(x² - 3x - 1)

= 3x²(x² - 3x - 1) + 5x(x² - 3x - 1) + 10(x² - 3x - 1)

= 3x⁴ - 9x³ - 3x² + 5x³ - 15x² - 5x + 10x² - 30x - 10

= 3x⁴ - 4x³ - 8x² - 35x - 10

hence, expression of vanessa's patio = (3x⁴ - 4x³ - 8x² - 35x - 10)

final total: 63

step-by-step explanation:

60 times sales tax

60 times 0.05

3

60 + 3

63