Westford Photography Studio is taking graduation portraits for students at local schools. Eighth graders from Westford Elementary School ordered 74 basic portrait packages and 62
deluxe portrait packages, for a total of $10,464. The seniors at Newberry High ordered 63
basic portrait packages and 74 deluxe portrait packages, for a total of $10,818. How much
does each type of package cost?

-2x + 7 = 7

subtract 7 from both sides.

-2x = 0

divide both sides by -2.

x = 0

when rotating a figure 180 degrees, imagine that you are able to take the figure and turn it clockwise or counterclockwise around a center point. to rotate a figure 180 degrees, you will need to apply the rule (x, y) → (-x, -y). start by using a coordinate grid with coordinates for each vertex of the figure. the center point of the coordinate grid is located at (0, 0), which is what you will rotate the figure around. write down the original coordinates of the shape you are going to rotate. then, apply the rule. for example, coordinate (1, 2) becomes (-1, -2). another example would be, coordinate (-4, -2) becoming (4, 2). after you change each original coordinate to the rotated coordinate, you will draw your new figure.

step-by-step explanation: