Hi can somebody please help me with my homework i will give Brainliest, Thanks, and 40 Points. Please answer ALL questions. :) Thanks :)

1) C

2) A

3) C

4) D

Step-by-step explanation:

1) n^2 = 16

n = 4 or n = -4

2) r^2 + 4 = 13

r = 3 or r = -3

3) 4n^2 + 3 = 19

n = 2 or n = -2

4) 2( x - 3 )^2 = 32

x = -1 or x = 1

john earns $14.00 for two hours of work.