the length of a rectangle is half as much again as its breadth. If the perimeter of the rectangle is 120m​

Let f(x) = 3 − x . find the average rate of change of f(x) from x = a to x = a + h and simplify your answer so that no single factor of h is left in the denominator.

Solve the equation by completing the square. x^2+2x=17

If you are dealt 4 cards from a shuffled deck of 52? cards, find the probability that all 4 cards are diamondsdiamonds.