Question

Robert paid $28.40 for 8 notebooks. At this rate, how much would it cost Robert to buy 6 notebooks?

Answer 1

$21.30

28.40/8=3.55
3.55*6=21.30

Answer 2

It would cost $21.30 for Robert to buy 6 notebooks.

Explanation:

find cost for each notebook:

28.40 ÷ 8 = 3.55

multiply by 6:

3.55 x 6 = 21.3

Hope this helped!