2.50 would be 25% out of 100%
Answer:

Step-by-step explanation:
Given
--- initial
-- rate
Value after a year = $20.70
Required
Expression to calculate its value after y years
This is calculated using:

Where

Substitute
in 



Substitute
and
in 

I tried but see if this helps you In algebra, it is easy to find the third value when two values are given. Generally, the algebraic expression should be any one of the forms such as addition, subtraction, multiplication and division. To find the value of x, bring the variable to the left side and bring all the remaining values to the right side.
Answer:
D
Step-by-step explanation:
9x-10-3x+2
9x-3x-10+2
6x-8
x=2
Answer:
y = 50 is answers and it is alternate angle