30 points! also, brainliest! me with these questions!

1) which expression is equivalent to 8pxp + 16?
a. 8 (2p + 2)
b. 8 (p + 2)
c. 8 (p x p+2)
d. 8 (p x p + 16)

2) ricardo's salary at city center bookstore is $39,000. in addition, he earns $0.50 for each book (b) that he sells. which equation represents ricardo's total salary (s)?

a. s = 39,000 + 0.50b
b. s = 39,000b + 0.50
c. s = 39,000 x 0.50b
d. s = 39,000 + 2/b

3) what is that value of y in the folowing eqaution?
y- 9.3 = 12
a. 105
b. 21.3
c. 2.13
d. 2.7

9) which expression is equivalent to 12x + 10 - 4 - 7x?

a. 11x
b. 22x -11
c. 5x + 6
d. 5x - 6