If Bobby went to the shop and there was a 20% sale. He was going to buy a top for £20. How much does Bobby save?
What is the new price of the top?

If Sarah went to the shop and there was a 10% sale. She was going to buy 7 CDs for £60.
How much does Sarah save?
What is the new price of the CDs?

Bobby saves 4$.

The new price is 16$.

Step-by-step explanation:

I hope you get it right

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: