Question

At the market, 5 light bulbs cost $9.85.
How much do 7 light bulbs cost?

Answer 1

$13.79

Explanation:

Divide the cost by the number of light bulbs.

$9.85 ÷ 5 bulbs = $1.97 each

Multiply the cost of each bulb(1.97) by each of the new bulbs.

$1.97 x 7 bulbs = $13.79