The answer u are looking for is 30
Answer:

Step-by-step explanation:
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= 
90. you can just do 5x12 which is 60. 60x3 is 180 then 180 divided by 2 because a triangular prism is just half of a cube
Answer:
y=0.5x+3
Step-by-step explanation:
Divide both sides by 2 which will give you y=0.5x+3.
Answer:
9/4 *(x-2)
Step-by-step explanation:
Replace xa and y in the given function then solve for y