This means the cost of the item to you is $57.75. You will pay $57.75 for a item with original price of $82.50 when discounted 30%. In this example, if you buy an item at $82.50 with 30% discount, you will pay 82.50 - 24.75 = 57.75 dollars.
Draw the line -10 to 20 divide it into units go to the left is minus and right plus. plot the point 1 in the line. going to the 7 unit right because it is adding 7 now you got 8 that is the answer.
