I need someone to explain to me this in steps how to solve this, please help. The price of a dozen cookies at a bake sale last year was $2. This year, the price for a dozen cookies was $5. What is the percent of change?

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?

Find and simplify an expression for the area of five rows of x squares with side lengths of x centimeters.

Question 1 of 10 2 points different groups of 50 graduates of an engineering school were asked the starting annual salary for their first engineering job after graduation, and the sampling variability was low. if the average salary of one of the groups was $65,000, which of these is least likely to be the average salary of another of the groups? o a. $64,000 o b. $65,000 o c. $67,000 o d. $54,000