Find the rate at which #280 will earn #21.00 simple interest for 21/2 years
To convert a decimal to a percentage, you need to move the decimal point two places to the right and add a percent sign (%).
So the answer in percentage is:
R = 0.03 = 3%
I = PRT
21 = 280(R)(2.5)
R = 21/(280*2.5) = .03
convert to a percentage