Diragio Lawn Care cuts 42 lawns every week. Each lawn uses
3 of a tank of gas when it is cut (on average).
Part a- if the lawnmower had no gas at the start of the week, how many times would it have to be completely filled during the week? Show your work (explain)
Part b-The cost for a full tank of gas in the lawnmower is $20. How much does it cost (in lawnmower fuel only) to mow one average lawn? Show your work (explain)