A couple decides to save money for their child's first year college tuition. The parents will deposit 1700 n months from today and another 3400 2n months from today. All deposits earn interest at a nominal annual rate of 7.2%, compounded monthly. Calculate the maximum integral value of n such that the parents will have accumulated at least 6500 five years from today. (A) 11 (B) 12 (C) 18 (D) 24 (E) 25

option c) graph of line going through 1, 4 and 3, 10

step-by-step explanation:

let y equal to margo's coin collection

let x equal to number of years

at the begining x=0, y=1 → point=(x,y)→point=(0,1)

she adds 3 coins per year, then y=1+3x

at x=1, y=1+3(1)=1+3→y=4→point=(x,y)→point=(1,4)

at x=3, y=1+3(3)=1+9→y=10→point=(x,y)→point=(3,10)

the graph of line going through (1, 4) and (3, 10), then the option c is the correct.

answer: y=0 if that is what u r looking for