Answer:
56 that's easy.....
Step-by-step explanation:
....
Answer
Find out the what fraction of the sandcastle did they build together .
To prove
Let us assume that the fraction of the sandcastle they build together be x .
As given


Than the equation becomes

L.C .M of (3,7) = 21
solving


Therefore the fraction of the sandcastle did they build together be

Hence proved
He spent 26.95 on each. It's just 80.85/3 =26.95
Answer:
The only two that share both of these qualities are the isosceles triangle and the isosceles right triangle.
-8-4y=-5x
-4y=-5x+8
y=5/4x+2
slope= 5/4
y-intercept=(0,2)