An amusement park has 20 different rides. you want to ride at least 15 of them. how many different combinations of rides can you go on?

Scott harris can invest $7,000 in a 1-year cd that earns interest at an annual rate of 4 percent compounded monthly. the amount per $1.00 is 1.040742. he can also invest $7,000 in a 1-year cd at annual rate of 4 percent compounded quarterly. the amount per $1.00 is 1.040604. what is the difference in the amount of interest earned for each investment? a) $0.96 b) $0.81 c) $0.87 d) $0.88

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

Ineed with angles and the measure of them i have abc a is 65 and b is (3x-10) and c is (2x) find the value of x