Question

Jeremiah is also ordering comic books online. The equation y = 8x + 4 represents the total cost, y, including shipping for ordering x number of comic books. What is the cost of 20 comic books?​

Answer 1

`y = 164`

Explanation:

Given

`y = 8x + 4`

Where

`x = number\ of\ comic\ books`

`y = total\ cost`

Required

Find y when x = 20

To do this, we simply substitute 20 for x in
`y = 8x + 4`

`y = 8*20 + 4`

`y = 160 + 4`

`y = 164`

Hence, 20 comic books cost 164