Sally is making a model of the White House for her American history class. She decides to use red ribbon for wallpaper borders. The first room needs 170 centimeters of ribbon. The second room needs 130 centimeters of nbbon. Each meter of ribbon costs $5. How much money does Sally need to buy ribbon for her model?
(Hint: 1 meter - 100 centimeters)

i can't solve unless i know what the line is

step-by-step explanation:

welcome to/p>

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: