Name the property illustrated by each question.
28. 5а + (-5a) = 0
30. – 6xy + 0 = — 6xy
32. (2 + 14) + 3 = 3 + (2 + 14)
34. 2/3+5v3 = (2 + 5)v3

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)

answer: 1inch=7days  

12inch=12*7=84days

step-by-step explanation:

2+2 obliviously is 4.