Answer:
1. x = 0
2. f = 0
Step-by-step explanation:
I'm not sure if this is what you meant.
4.286%
12/280=0.04286*100=4.286/100 or 4.286%
a. x + 64 = 70
b. x = 6
Let the fifth number be x.
2
use your calculator
you didnt add the equations