Answer:
h=4/5
Step-by-step explanation:

Collect like terms and simplify

Answer:
pi144
Step-by-step explanation:
square the radius but dont multiply by pi because the question wants you to leave it out.
Answer:
-4 and 0
Step-by-step explanation:
Rise over Run would give us the slope.
In the first graph, It goes down 4 while it goes 1 to the right.
This means that -4/1 = -4.
The second graph does not go up or down, meaning 0, while it goes 1 to the right.
This means that 0/1 = 0.