Use two prime numbers to create a fraction equivalent to 21/49

Which statement about the graph of y = 8(0.25)^2

Use the quadratic formula to solve the equation. if necessary, round to the nearest hundredth. x^2 - 20 = x a. 5, 4 b. -5, -4 c. -5, 4 d. 5, -4

Which of the following is missing in the explicit formula for the compound interest geometric sequence below?