Answer:
100
Step-by-step explanation:
Given : 
To Find : the value of expression 5a.
Solution :
We are given the value of 'a' i.e. a=20
Now to find the value of given expression 5a
⇒
put a = 20 in the equation
⇒
⇒
⇒
Thus , The value of expression 5a when a = 20 is 100
We are asked to solve and determine the total yards that Jules needed to fence his land. Initially, we have an original square lot area of 30 yards by 30 yards. Then it is divided by two and we need to compute for the new perimeter of the land so that we will know the total fence that we need.The solution for the perimeter is shown below:
Perimeter = 30 +15 + 15 + 30 + 15+ 15 + 30 (the middle)
Perimeter = 150 yards
Jules needs
150 yards to fence his land.
Well, what's the diffrence from 5/4 to 3/8?

so, if we take 5/4 to be the 100%, what is 7/8 off of it in percentage anyway?
√64=8 ∛8=2
In the √, you find something that squares into the number
In the ∛, you find something that cubes into the number
Answer:
the question is incomplete :-')