3.) An oil change service center charges $42 for an oil change plus 6 quarts of oil. Another option is $26 for an oil change plus 2 quarts of oil. Use a system of equations to find how much an oil change is and how much a quart of oil is.​

He ! a group of farmers planned to clean 80 acres of wheat per day to finish the work on schedule. right before the work started, they received a new piece of machinery that them clean 10 more acres per day than originally planned. as a result of increased productivity in the last day before the deadline they only had to clean 30 acres. how many acres of wheat did the group of farmers have to clean?