Answer:
1. 200 per two years or 100/year, 2. 4%
Step-by-step explanation:
2700-2500=200 interest earned for two years or 100 per year
principle x interest rate =interest earned per year
2500 x interest rate =100
interest rate =100/2500
interest rate =.04 or 4%
B or A and yeah ...........
7/9
if you add the two numbers you will get 7/9
1/4x^2 - 1
let x be the unknown number.
one less(-1) than one fourth the square of a number(1/4 * x^2) = 1/4x^2 - 1