Consider the function f(x)=2/5x^2+3
How many total solutions does this function have

Suppose that one doll house uses the 1 inch scale, meaning that 1 inch on the doll house corresponds to 1/2 foot for life-sized objects. if the doll house is 108 inches wide, what is the width of the full-sized house that it's modeled after? in inches and feet.

3x + 4y = 5 x- 3y = -7 solve by substitution

Which value of y will make the inequality y< -1 false?