The following image of quadrilateral MNOP is being dilated using a scale factor of 3 and the origin as the center of dilation, What a coordinates and the now coordinates after the dilation is applied? (Write your answer like (x, y) with a space after the comma.)

The students at jefferson middle school are raising money for a charity by selling t-shirts and hats. the number of t-shirts sold was 3 times the number of hats. the profit was $5 for each t-shirt sold and $2.50 for each hat sold. the students raised $840 for the charity. they used the system below to analyze their success and found the solution to be (144, 48). 5x+2.50y=840 x=3y how much did they earn from t-shirt sales?