Answer:

Step-by-step explanation:
We can notice that the the prism provided is a rectangular prism.
By definition, The lateral area of a rectangular prism can be calculated by multiplying the perimeter of its base by its height.
The height is:

Then, the perimeter of the base is:

Then the lateral area is:

Factor each completely 3r^2+7r
r(3r+7)
Answer:
i think that it is C
Step-by-step explanation:
if im incorrect i apologize
Answer:
22
Step-by-step explanation:
If x = 5, then plug 5 in for x .
3(5) + 7
15 + 7 = 22
The answer is 14.9 or you can say <span>14 </span><span>9/10.</span>