(f+3)^5
(5/0)*(5/1)*(4/2)*(3/3)*(2/4)*(1/5) so the coefficients are:
1,5,10,10,5,1
1*f^5+5f^4*3+10f^3*9+10f^2*27+5f*81+243
f^5+15f^4+90f^3+270f^2+405f+243
Surface are = [(3*4) + (3*5) + (4*5)] *2 calculate as 94 squat inches
The answer is d) Reflection