10( 1/2x+ 4)=8 is the answer to this question
The volume of a prism = area of the base * height
substitute:
640 = A * 8
base area=80 sq ft<span />
Answer:E
Step-by-step explanation: when you count the units you go down 8 and then you look over and see that it was moved to the right 7 times
Answer: 
Step-by-step explanation:
In this case we know that the legs of the given right triangle have these lenghts:
and 
By definition, the sides of a right triangle are in the ratio 
Since:

We can multiply the lenght
by 1.25 in order to find the lenght of the hypotenuse of the right triangle:

Since the perimeter of a triangle is the sum of the lenghts of its sides, we can write the following expression for the perimeter of the given right triangle:

Simplifying, we get:
