A submarine dives 350 feet every 2 minutes, and 7,875 feet every 45 minutes. What is the constant of proportionality from this situation? Use K= Y/X

The triangles are similar. what is the value of x? show your work.

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

Before simplifying, how many terms are there in the expression 2x - 5y + 3 + x?