Answer:
I'll setup the problem, then you can do the calculations
Step-by-step explanation:
Perimeter = 2width(W) + 2length (L)
Area = LW
L = 2.5 + 2W
LW = 62.5
substitute L in equation for area

a = 2; b = 2.5; c = 62.5
send a comment if you have a question
Answer:
100
Step-by-step explanation:
since its collinear it has to be 180 -80 which equals 100.
The answer would be 13.9 kg of gravel used per square meter
Answer:
parallel!
Step-by-step explanation:
if you insert the equation into demos there parallel