jennifer runs a landscaping business. she is about to buy a new mower that she expects will last her three years. compared to model a, which is similar to the mower jennifer is currently using, model b costs $1,500 more but will save about $200 in gas each year. it will also allow her to earn $10 more each week because it mows faster, which allows her to work on more lawns. which model should jennifer buy, and why?
