Question 4:
the prime factors of two numbers are:
23 x 3 x 52 and 22 x 33 x 5 x 11
what is the highest common factor of the two numbers?
clive's
your
the hcf is the common factors.
multiply all the common factors.

2*3*5 = 30

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.