Question

The amount of money ,in dollars, that Paul earns is represented by the expression 15x + 10 , where x is the number of hours he works. How much does Paul earn when he works for 8 hours? A: $25 B: $95 C: $120 D: $ 130 Please tell me the correct answer and how you got it step by step... Thank you...

Answer 1

Since "x" is the amount of hours that he works and it is stated that he works for 8 hrs, you would plug 8 into the equation instead of "x" 
15(8) + 10 instead of 15x + 10
When you simplify this you will get 120 + 10 which equals 130 (answer D)

Answer 2

15x+10
x=8
15(8)+10
(15×8)+10
120+10
130