Flannery used 30 lilies and 78 roses to create six identical flower arrangements. Write an equation to describe the relationship between l the number of lilies, and r, the number of roses.

1mile equals approximately 1.6 kilometers. which best approximates the number of miles in 6 kilometers?

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.

If the sales price of a dvd is $20 and the markup is 34%, what is the cost of the dvd?