I think that it is attempt. If i am wrong, sorry.
Mr. Webster is buying a carpet for an exercise room in his basement the room will an area of 230 ft
Mx-ymx-y
m=5m=5
x=3x=3
y=8y=8
So... They all have to be 0 otherwise they are false so...
Hope this helps :)
Since there are 120 payments in total
Then the total
interest paid is $ 9,118.32
The monthly interest = $ 9,118.32 / 120
The monthly interest = $ 75.99 per month
% total interest = ( $ 9,118.32/ 29,118.32) x 100
% total interest = 31.31 %