What are the solutions to the quadratic equation x2 - 16 = 0?
x = 2 and x = -2
x = 4 and x = -4
x = 8 and x = -8
x = 16 and x = -16

Find the value of tan theta if sin theta = 12/13 and theta is in quadrant 2

Find the solution of this system of equation -7x+y=-20 9x-3y=36

Michelle is planting flowers in her garden. she wants the ratio of daises to carnations to be 3 to 2. michelle wants to plant a total of 35 flowers. how many daises should she plant?