Jessie invests $3345 in the stock market. over the 3 years she has this invested she gets an average return of 7.8%. how much will her investment be worth after the 3 years?

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?