Answer:
A = 7.7
b = 26
Step-by-step explanation:

Answer:31/73*100
=42%
Step-by-step explanation:
Should be -1.428571
Explanation:
H=-6 is the answer after substituting
There are 11 skateboards and 9 bikes.
Set up your equations: 4s+2b=52 and b+s=20
Multiply the 2nd by 2, 2b+2s=40
Subtract the second equation from the first
2s=22
so 11 skateboards and 9 bikes