1) The math department at Kennedy Middle School is planning to buy some pattern blocks that cost $6 per set.
Write an equation that shows how the total cost, y, depends on the number of sets
bought, x.
-)) Do not include dollar signs in the equation.

Solve the system of equations. y= 2x y= x^2 - 15

Scale factor of 2 is used to enlarge a figure as shown below the area of is 18 in.²

The first-serve percentage of a tennis player in a match is normally distributed with a standard deviation of 4.3%. if a sample of 15 random matches of the player is taken, the mean first-serve percentage is found to be 26.4%. what is the margin of error of the sample mean? a. 0.086% b. 0.533% c. 1.11% d. 2.22%