Please help! Mr. Bolden bought g guppies at a pet store for $3.00 each and paid with a $20 bill. Write an algebraic expression to represent how much change he will receive.

5x+40

5(x + 8)

7x - 49

7(x - 7)

18x + 9

9(2x + 1)

15x - 10

5(3x - 2)

step-by-step explanation:

for number one all you have to do is factor 5 out of 5x + 40

for number 2 factor 7 out of 7x - 49

for number three factor 9 out of 18x + 9

for number four factor 5 out of 15x - 10

whose power in the senate is equal to the power of the speaker of the house?

step-by-step explanation:

a - base

b - exponent

so,

answer: correct

step-by-step explanation: