Carsyn observes the bird feeder in her backyard for 1 hour. During that hour, she sees 24 birds visit the feeder. She sees 6 cardinals, 6 chickadees, 4 mourning doves, and 10 goldfinches. What fraction of the birds were cardinals? Chickadees? Mourning doves? Goldfinches? Write each fraction in simplest form.

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?