Teresa received $80 for her birthday. At what rate would she have to invest to have $90 at the end of the year

Given f(x) = 17-x^2what is the average rate of change in f(x) over the interval [1, 5]?

For which of the following counts would a binomial probability model not be reasonable? a)the number of people in a classroom born in januaryb) the number of people in a classroom with red hair c) the number of people admitted to a hospital in a day with a particular disease d) the number of heart beats in a one-minute perio.

Complete the solution of the equation. find the value of y when x equals to 6 4x+y=20