damian dilates PQR shown on the coordinates grid with a scale factor of 0.5 centered at the origin. then he translates the image 1 unit up and 3 units to the right to form p' q' r'

How to solve a simultaneous equation involved with fractions?

Mrs. morton has a special reward system for her class. when all her students behave well, she rewards them by putting 3 marbles into a marble jar. when the jar has 100 or more marbles, the students have a party. right now, the the jar has 24 marbles. how could mrs. morton reward the class in order for the students to have a party?

The jewelry store is having a sale. necklaces that were regularly priced at $23.50 are on sale for $18.80. what is the percentage of decrease in the price of necklaces?