The method of completing the square was used to solve the equation 2x - 12x +6=0. Which equation is a correct step when using this method? 1) (x- 3)² = 6

2) (x- 3)? =-6

3) (x- 3) = 3

4) (x- 3) = -3

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?