Answer:
The total he would have to pay back would be $7,320.44
Step-by-step explanation:
(I'm assuming you want the total amount he needs to pay back)
6700 x 0.10 = 670 per year
670 ÷ 365 = 1.835616438356164
1.835616438356164 × 338 = 620.44
620.44 + 6700 = 7,320.44
I think the answer is 22mn2+66m2n-64 since there are no more like terms
9^2 + 12^2 = 225. the square root of 225 is 15. x=15