Solve 9 + 40 = 12 - 4. Determine whether the equation has one solution, no solution, or infinitely many solutions.

The function ƒ is defined by ƒ(x) = (x + 3)(x + 1). the graph of ƒ in the xy-plane is a parabola. which interval contains the x-coordinate of the vertex of the graph of ƒ?

Jack brought 12 pet monkeys. if each monkey cost $45.99, how much money did he spend in all?

Explain why the following problem is an irrational answe