(i know its easy but its for my little sister and she wont believe me)
what is 9× 10

9×10=90. Do 10  9 times or 9 10 times.

9*10 is 90. Just take the 1 away and add the 0 to 9 to get 90.

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.

For a 0.25 pfor b o.3pp (0.25+0.3)=0.28