Answer:
(a) 
Step-by-step explanation:
The question is incomplete. (See comment for complete question).
From the completed question, we have:
--- number of pyramids
Required
An expression for the area of the base
The total base length of the pyramid represents the perimeter of the base.
And since the base is a square, then the following relationship exist.
Where L represents the length of each side.
This gives
Make L the subject
The area of the base is then calculated as:
Arjun should have divided both sides of the equation by 7 instead of multiplying.
There is not a lot of information to go off of...so I think that if he mows for 11 hours a day it would be 330 hours. Also, you did not give how much he makes from this.
330hrs x how much he makes from 11hrs= $
11 squared is 121
20 squared is 400
121+400= 521
The approximate square root of 521 is approximately 22.8254
The are 8 blue bicycles, 6 green bicycles, and 4 yellow bicycles and total they equal 18.
