The equation 15x + 30y = 180 represents the number of children x and adults y who can attend the rodeo for $180. Find the x- and y-intercepts (Hint: use Desmos). Then explain what each means in terms of the context of the problem. Someone PLEASE EXPLAIN:)

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