Question 13 The line y = 2x - 4 is dilated by a scale factor of and centered at the origin. Which equation represents the image of the line after the dilation?
OA
y = 2x - 4
B
y = 2x - 6
c С
y = 3x - 4
D
y = 3x - 6

Graph red beads cost $1 an ounce and gold beads cost $3 an ounce. juanita wants to purchase a 12-ounce mixture of red and gold beads that she can sell for $2 an ounce. the solution of the system shows the number of beads needed for juanita to break even. x + y = 12, x + 3y = 24 how many ounces of red beads will juanita buy to break even? how many ounces of gold beads will she buy?

Last month, a 770 g box of cereal was sold at a grocery store for $3.10. however, this month, the cereal manufacturer launched the same cereal in a 640 g box, which is being sold at $2.50. what is the percent change in the unit price?

The standard deviation for a set of data is 5.5. the mean is 265. what is the margin of error?