Choose a number and add 5 to it. multiply it by 2. subtract by 7 and add 1. divide by 2. subtract 2. will you get your starting number every time?

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?

Evaluate cos2θ for cosθ = square root of 3/2

What is the equation of the parabola with focus (-1,-1) and directrix y=1?