A(n)=ar^(n-1) so
100=4r^9
25=r^9
ln25=9lnr
ln25/9=lnr
r=e^(ln25/9)
a(n)=4e^((n-1)(ln25/9) if you wanted an approximation...
a(n)=4(1.43^(n-1))
184.19 cm²
IF I WAS CORRECT PLEASE THANK ME. =)
Answer: if it is simply then the answer is 3x^3+14x^2-17x+14
Step-by-step explanation: