Solve by using the substitution method y = -2x
7x - 8y= -23

Janet drove 300 miles in 4.5 hours. write an equation to find the rate at which she was traveling

Which number line represents the solution set for the inequality -1/2x> 24?

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.