1. The factors of a2 - 9 are a. (a+3)(a -3)
b. (a+9)(a-9)
c. (a-9)(a-9)
d. (a+3)(a+3)
2. A linear equation consists of polynomials of degree
a. One
b. Two
c. Three
d Four​

Step-by-step explanation:

1. (a+3)(a-3) = a²+3a-3a-9 = a²-9

2. a linear equation consists of a polynomial of degree one.

8 apples are left.

step-by-step explanation:

10-2=8

10 apples

take 2

now u have 8

the answer is 62.8 cubic units