A ramp is being constructed with wood
and then filled with concrete. How many
cubic feet of concrete will be needed to
complete the ramp?

Step-by-step explanation:

The missing figure is attached.

You can calculate the volume of the concrete that will be needed to complete the ramp with the folllowing formula:

Where "B" is the area of the base and "h" is the heigth.

The  base is a triangle, then its area can be found  with this formula:

Where "b" is the base and "a" is the heigth.

 IN this case:

Then:

Since:

You get that the volume is:

answer: c. is your answer

step-by-step explanation: get me a black leather coat