6.5(2r - s) + 3.7r - 1.25s.....first we distribute the 6.5 thru the parenthesis
13r - 6.5s + 3.7r - 1.25s....now we combine like terms
(13r + 3.7r) = 16.7r
(-6.5s - 1.25s) = -7.75
leaving us with : 16.7r - 7.75s <==
Answer:

Step-by-step explanation:
1. Combine like terms
2y-7y = -5y
-5y=5
2. Divide by -5 and the answer is 
Answer:
4000
Step-by-step explanation:
Answer: 26/52
Step-by-step explanation: