Solve the quadratic equation graphically using at least two different approaches. when necessary, give your solutions to the nearest hundredth. 16x^2-400=0

If a =6, what is the value of 2a(3b + 5c)?

How many real and imaginary solutions does the equation x^2-3x=-2x-7 have?

anyone? find the second, fifth, and ninth terms of a sequence where the first term is 65 and the common difference is -7. 72, 93, 121 72, 79, 86 58, 37, 9 58, 51, 44