To calculate discretionary money, you . A. calculate the difference between your gross pay and net income
B. calculate the difference between your net income and fixed expenses
C. calculate the difference between your gross pay and fixed expenses
D. calculate the sum of your net income and fixed expenses

At a constant it will take one hour to travel 32 mi.at that speed it will take 1/2 hr to travel the remaining 16 mi.it will take 1+1/2 hr to travel the 48mi @ 32mph.so 1 hr = 60 min& 1/2 hr = 30 min1+1/2 hr = 90 min.there are 60s in each 90 × 60 = 3600 seconds.the real question seriously is he why are they driving so slow? ! lol.

Ithink it’s d as the answer.

So confused right here i need it to be more clearer