Which exponential function is represented by the values in the table? (-2,16) (-1,8) (0,4) (1,2) (2,1)

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?

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).

Two years ago a man was six times as old as his daughter. in 18 years he will be twice as old as his daughter. determine their present ages.