Answer:80
Step-by-step explanation:if you multiply a times 20 to get 5, you have to multiply b times 20 to get 80
B: 78.50
If you plug in 5 for r, then you get 3.14 * 25, which is equal to 78.5
Hope this helps!
Answer: 2.5 hours
Step-by-step explanation: 23.75 divided by 9.5
Answer: 53x^7
Step-by-step explanation:
Subtracting a negative is like adding.
