Greg mows yards in his neighborhood and has developed some good relationships with his clients. He can mow five yards using his push mower with one gallon of gasoline that costs $2.50 per gallon. In June, Greg had four yards that he mowed each week, along with trimming and edging. Greg charges $20 per yard when they include trimming or edging. He mowed one additional yard each week that required no trimming or edging, so he only charged $15 for that yard. Greg had to buy a new spool of trimmer line in June for $10 including sales tax. At the beginning of July, Greg had to buy a new spark plug that was $5 and filter for his mower that was $15 including sales tax. He also needed to buy a quart of oil the first week of July that cost $5 including sales tax.
During the last week of June, Greg picked up two new customers for the month of July. One yard required trimming and edging and one did not. Having two extra yards to mow was a good thing because at the end of June Greg’s trimmer needed some routine maintenance and parts for a total expense of $55. Greg also had an accident in June when a rock shot out from under his mower and broke a garage door window. The repair cost was $45 for a new pane of glass. Finally, in the middle of July, Greg decided to change the mower blades after the rock incident caused the blades to cut unevenly. The new blade was $25 including sales tax and Greg installed it himself.
Using these figures, determine how much of a profit or loss Greg realized during the two-month period.