What dis answer is answer

Factor the polynomial 8y^2 - 72 btw "^" means exponent

A33 gram sample of a substance that's used to detect explosives has a k-value of 0.1473. n = noekt no = initial mass (at time t = 0) n = mass at time t k = a positive constant that depends on the substance itself and on the units used to measure time t = time, in days

How many solutions does the nonlinear system of equations graphed bellow have?