Answer:
9
Step-by-step explanation:
If A = - 3, than A^2 is equal to (-3)^2
If a number is squared (to power of 2), it is multiplied by itself (there are two of that number being multiplied together) so it is - 3x-3
-3 x - 3 = 9,
Because 3x3 =9 and a negative multiplied by a negative makes a positive.
Hope this helped!
Answer:

Step-by-step explanation:
we know that
The surface area of a rectangular prism is equal to

where
B is the area of the base
P is the perimeter of the base
h is the height
In this problem we have



substitute

Answer:
41.67 dollars
Step-by-step explanation:
because 250/6= 41.6666666667
that rounded is 41.67 dollars
3 is the greatest common factor, because both numbers are divisible only by 3.