Tanya is building a tower with blocks that are 3 inches high. Val is building a tower with blocks that are 7 inches high. What is the shortest tower each can build if they want their towers to be the same height? A. 14 inches B. 21 inches C. 35 inches D. 42 inches​

47 - 90 = 43

43 - 180 = x

x = 137

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)

correct answer is c. just did it

step-by-step explanation: