Can someone please help and explain

Answer:
[tex]c = 300000 {(1.05)}^{50} [/tex]
Step-by-step explanation:
The future value formula is FV=PV(1+i)^n, where the present value PV increases for each period into the future by a factor of 1 + i. value PV increases for each period into the future by a factor of 1 + i.
[tex]fv = pv {(1 + r)}^{n} [/tex]
fv = future value
pv = present value
r = annual interest rate ( decimal number)
n= period