Molly can use her mode to show that she is doing better than the other three students.
Ashlee’s mode is 94, Belen’s mode is 79, Molly’s is 98, and Sofia doesn’t have a mode. The highest is Molly, so she should use her mode to show she is doing better.
To estimate the amount Bradley would have at age 73 if he started investing in 40 we use the future annuity formula given by: A=P[((1+r)^n-1)/r] where: P=principle r=rate n=time thus plugging in the values we get: A=12×550=$6600 n=73-40=33 r=7% hence A=6600[((1.07)^33-1)/0.07] simplifying the ^ we get: A=784,960.6054 Hence the answer is: $784, 960.6054
