Match the term to its description. Match Term Definition
Elliptical galaxy A) Does not have a distinct regular shape
Galaxy B) Has a central core from which curved arms spiral outward
Irregular galaxy C) Is a collection of several billion stars and interstellar matter isolated in space
Spiral galaxy D) Forms a perfect sphere or an ellipse and is flattened to some degree

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?