Answer:6
Step-by-step explanation:
when dividing by a fraction. you can multiply by its reciprical
15/4 *8/5
(15*8)/(4*5)
120/20
If you need to simplify
6
EDIT: answer above got this right before me. for some reason I did 8*5 as 30 :/
Answer:r=2.5m+3.5
