Justin uses the mold shown to make cement column posts to use as a barrier on a walkway. To
make a post, Justin completely fills the mold with wet cement through a small opening on the
bottom. How much wet cement, in cubic inches, is needed to make twenty posts? Round your
answer to the nearest cubic inch.

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.