Ur close but it is 0.023 you were off just a bit
Since Janice just turned 61 years of age Rob is 40 years of age and will be turning 41 soon.
Im assuming that it adds interest per month

9=1%
15.75=1.75%
15.75 x 36 = answer
It depends what type of shape it is if it were a rectangle it would be l x w x h but what a see is a 6 sided figure so it should be a hexagon but a hexagon has all equal sides so it would depend what type of shape it is