Which shows the image of rectangle ABCD after the rotation (x, y) (-y, x)? D
Cty
D
Cty
D
City
D
Сту
3
3
3
А
IB
IB
x
A
3
A
ІВ
x
B
C-3
BI
3
A
-3
IB
C
B'
A
B'
C
D
A
3
3
A
D
3
A
D'
CLUD
Intro
Done

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?