Question

if 5 notebooks cost 5.25 how much would three notebooks cost ??

Answer 1

5.25/5 will give you the cost of one book
That multiplied by 3= 3.15
Hence the answer is 3.15

Answer 2

First of all we have to find the cost of one notebook so,
5.25 / 5 = 1.05
So one notebook cost 1.05
But, we have to find out how much does three notebook cost,
So,
1.05 x 3 = 3.15
Your answer is 3.15

/ means divide
Hope I've Helped.