The minimum value of 2x+1 is 13

Min of 2x+1 is 13 if the min is 13, then that means that 2x+1 is at least 13, so it can be 13 or greater 2x+1≥13 solve for x 2x+1≥13 subtract 1 from both sides 2x≥12 divide both sides by 2 x≥6 x is greater than or equal to 6

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.