Simple interest has a formula of I = Prt, where I is Interest, P is the principle amount deposited, r is the interest rate and t is the time in years. Your P value is 1800, your r value is .065 (always convert a percent to its decimal form!), and your t is 9. Just fill in those variables to solve: I = 1800(.065)(9) to get I = 1053
<span>In this question, the prices are Increased at a monthly rate of 2.3%. Since you are asked how much the percentage in a year and there is 12 month in a year, then you need to do the calculation 12 times.
The calculation would be (100%+2.3%)^12= </span><span>131.37344984%
That would be about 31.37% a year. </span>
3 times X squared minus 4 times X =

So at this point it says “times” so your multiplying and it’s 3 times so you would
do 3x15 and there you have your answer
Coefficients are 2 and 3
Constant is M