Which step could you use to start solving the system of equations below?* x + y = 3
-3x – 2y = -7
A. Multiply x + y = 3 by 3 and add it to -3x - 2y = -7
B. Multiply -3x-2y = -7 by 2 and subtract it from x + y = 3
C. Add x + y = 3 to -3x - 2y = -7
D. Subtract x + y = 3 from -3x - 2y = -7

D I think have a good day

300b(x) is graphed by the functio

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.