PLEASE HELP I NEED IT!! Graham drove 42.3 miles in 15 hours. What is the unit rate for miles per hour?

2.82 miles per hour

Step-by-step explanation:

This is a fraction equal to

42.3 miles ÷ 15 hours

We want a unit rate where

1 is in the denominator,

so we divide top and bottom by 15

42.3 miles÷ 15

15 hours÷ 15

=

2.82 miles

1 hour

=

2.82 miles

hour

= 2.82 miles per hour

the answer to the expression is 83