Select all the pairs of like terms in the expression. 25
2
5
y + 15
1
5
x – 0.2y – 6 + (–2)
25
2
5
y and 15
1
5
x
25
2
5
y and –0.2y
15
1
5
x and –0.2y
–0.2y and 2
–6 and –2

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?