Answer:

Step-by-step explanation:
We know that 
Also , 
So ,

Answer:
48
Step-by-step explanation:
So your equation is: 5y3 - 21 + 6y2 + (25 ÷ 5) and y = 2.
Evaluate for y=2
5(23)−21+6(22)+
25
5
5(23)−21+6(22)+
25
5
=48.
So the answer is 48.
Answer:
30.80
Step-by-step explanation:
$370/12ft^2
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