Start by making variables to represent each tire S=all-season tires T=all-terrain tires Create equations based on what was given in the question 68s+125t=3926 (the price for each tire multiplied by the number of tires equals the overall sales price) T=14 (14 all-terrain tires were sold) Sub 14 into the first equation for t in order to solve for s 68s+125(14)=3926 68s+1750=3926 68s=3926-1750 68s=2176 S=32 I hope this helps!