Letters used to represent values or unknown quantities that
can change or vary. One example of an algebraic expression
is 3x – 4. Notice the variable,
12 hours in order to make 200 dollars
Answer:
See Explanation Below
Step-by-step explanation:
Your question isn't clear; However, I'll solve in two ways
1. Diameter = 14 cm
2. Radius = 14 cm
<em></em>
<em>When Diameter = 14 cm</em>
Given


Required
Calculate the area of the circle
First, the radius has to be solved;



Using the given formula;
The area is as follows




<em>When Radius = 14 cm</em>
Given


Required
Calculate the area of the circle
Using the given formula;
The area is as follows




216 divided by 3 is 72 so making the answer
1/72
company a: 2mins
company b: 7mins
:)