Bobby did chores every single day in September. It took Bobby 3/4 hours to complete his chores on 20 of days . The remaining 10 days of the month it took him 1 hour to complete his chores . How many hours did Bobby do chores in September?

Julius sold five times as many computers as sam sold last year. in total, they sold 78 computers. how many computers did julius sell?

If $740 is invested at an interest rate of 11% per year and is compounded continuously, how much will the investment be worth in 7 years? use the continuous compound interest formula a = pert.

Beth divided 9 ounces of her granola recipe into 4 equal-sized amounts. she placed the amounts into individual bowls. the fraction 9/4 represents the number of ounces of granola in each bowl. which other number represents the amount of granola beth has in each bowl? (a) 1 1/4 (b) 2 1/4 (c) 1 3/4 (d) 3 3/4 i need !