Is the given function continuous for all real numbers? f(x) = x+4/ (x-1) (x+8)

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?

What is the solution set of the quadratic inequality x^2-5< or equal to 0

What is the frequency of the sinusoidal graph?