Bobby earns $14 per yard mowing lawns. He has saved $126 already. He wants to buy a video game system that costs $280. How many lawns does he need to mow to buy the gaming system? Set up an equation using a variable and solve the equation to answer the question.

Frank is lending $1,000 to sarah for two years. frank and sarah agree that frank should earn a real return of 4 percent per year. instructions: a. the cpi (times 100) is 100 at the time that frank makes the loan. it is expected to be 113 in one year and 127.7 in two years. what nominal rate of interest should frank charge sarah?