Question

Isabel worked 20 hours last week and earned $145.80. Nan worked 15 hours last week and earned $112.50. How much more does Nan earn per hour?

Answer 1

So you dived the money by how much they worked
Isabel would be
$145.80 \div 20 = 7.29$
And nan wold be
$112.50 \div 15 =$
then subtract the two

Answer 2

145.80/20=7.29 an hour
112.50/15=7.5 an hour
7.5-7.29=0.21 more an hour