Select the correct answer from each drop-down menu. garry is cooking for his friends. he wants to buy some potatoes, which are priced at m dollars a pound. he has already spent b dollars on other ingredients. the following expression represents the total amount of money that garry would spend after buying x pounds of potatoes. if the amount already spent by garry on other ingredients, b dollars, is halved, then the value of m will . if the cost for each pound of potatoes, m dollars, is tripled, then the value of b will , and the value of mx will .

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.

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