Sa = 4π^2h, where sa is the surface area, r is the radius and h is the height. what happens to the area if the height is tripled and the base stays the same?

You mean

when height is trippled
replace h with 3h



the surface area is tripppled

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.