Answer:
First, convert R as a percent to r as a decimal
r = R/100
r = 4.7/100
r = 0.047 rate per year,
Then solve for A,
[tex]A = P\cdot e^{rt}\\\\A= 1800 \cdot (2.71828)^{(.047)(15)}, \ where \ e = 2.71828\\A = 3642.92[/tex]
The amount he receives after 15years $3,642.92