2/3y^2+14=20 how do you solve this with the square root method?

Acircle has a circumference of 7.850 units. what is its radius?

Heather is riding a quadratic function that represents a parabola that touches but does not cross the x-axis at x=-6

Three runners competed in a race data were collected at each mile mark for each runner if the runner ran at a constant pace the data would be linear