The questions is, when z=9, 3z = ? When you multiply 3*9, you get 27
The answer is c! you just subtract: 3/2-1/2, which is 1.
to find the hypotenuse (or the ramp in question 4) you can use the equation

with a and b being the 3 feet and 9 feet and c being the unknown (ramp).
So if you plug 3 and 9 into the equation, it looks like this.

then square them.

simplify.

take the square root of both sides.

is approx. 9.5 so the answer would be H.
Answer:
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Step-by-step explanation: