From january 1 to december 31 of the same year, how many times does the suns perpendicular ray cross the equator

Describe the 2 algebraic methods you can use to find the zeros of the function f(t)=-16t^2+400.

The marriott family bought a new apartment three years ago for $65,000. the apartment is now worth $86,515. assuming a steady rate of growth, what was the yearly rate of appreciation? what is the percent of the yearly rate of appreciation?

How do i solve uniform motion problems?