How much would it cost to buy 15 books if books are $5 each, and there is a flat rate shipping fee of $6? Write the equation for the situation then solve.

y = 5x +6; y= 81

Step-by-step explanation:

Substitue the 15 for x

15*5 = 75

75+6 = 81

y = 81

correct answer is infinitely many solutions

step-by-step explanation:

2(2x + 3) = -4 + 2(2x + 5)

solving the above equation:

4x + 6 = -4 +4x +10

combining like terms

4x -4x = -4+10-6

0=0

since both sides are 0=0, we end up into true statement it means it has infinite many solutions.

so correct answer is infinitely many solutions

$9.89

step-by-step explanation:

9.90 = p x .06 x .25 (3/12 changed to a decimal)

9.90 = p x 0.015

9.90 - 0.015 = p

9.89 = p