The model is 3 inches, since 3 times 3 is 9 and 1 times 3 is 3.
It depends on if the interest rate of 6% is nominal or not. The question doesn't specify. Let's assume that is is a nominal rate, compounded monthly.
Start with 100000 = x * a angle 132 at .5% per month
This becomes 100000 = x * (1-1.005^-132)/.005
Which becomes (100000(.005))/(1 - 1.005^-132) = x
So x is the PMT, which is 1036.70.
4/16, 5/20, 6/24, 7/28, 8/32...
Hello : here is a solution
