Answer: D
Step-by-step explanation:
4r-r+3r can be simplified to just 6r
-s-2s-s can be simplified to just -4s
Not Rationally, No. But You Can Make It Into 26.5
13 songs per cd 4/4 and 52/4= 1/13
1. Convert percent into decimal (it will help)

2. Convert Decimal to fraction