Pre-image abcd was dilated to be image a'b'c'd' ,where the center of dilation is the origin. what scale factor was used in the dilation?

Lisa has three classes that each last 50 minutes. what is the total number of minutes of the three classes

Four congruent circular holes with a diameter of 2 in. were punches out of a piece of paper. what is the area of the paper that is left ? use 3.14 for pi

Anew shopping mall is gaining in popularity. every day since it opened, the number of shoppers is 5% more than the number of shoppers the day before. the total number of shoppers over the first 10 days is 1258 how many shoppers were on the first day?