Solve for s in terms of q, r,and t. r=s+q-t

What could explain what happened when the time was equal to 120 minutes

Find the roots of the equation below. x^2 - 6 + 9 = 0

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.