Answer:10
Step-by-step explanation:
multiply
10x2=20
5x2=10
20+10=30
Step-by-step explanation:
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N = 21 w
21 is the constant of proportionality
Answer:
square inches
Step-by-step explanation:
For the rectangular prism in the middle:



For the left triangular prism:





For the other right triangular prism, it's the same.
Let's add now to find the surface for the whole ramp.

Hope this is helpful to you