21 the number of real solutions each quadratic equation has. answer with either no, one, or two. 1.) y = 12x^2 - 9x + 4 has _ real solution(s) 2.) 10x + y = -x^2 + 2 has _  real solution(s) 3.) 4y - 7 = 5x^2 - x + 2 + 3y has _  real solution(s)4.) y = (-x + 4)^2 has _  real solution(s)

Suppose that the price p (in dollars) and the weekly sales x (in thousands of units) of a certain commodity satisfy the demand equation 4p cubedplusx squaredequals38 comma 400. determine the rate at which sales are changing at a time when xequals80, pequals20, and the price is falling at the rate of $.20 per week.

What does x = in this equation x+3+2x=x+5

Explain how you can find the missing fraction in 3 4/5 / (blank) 2 5/7. then find the missing fraction.