Aparabola and its directrix are shown on the graph.
what are the coordinates of the focus of the parabola?
nu
(0,2)
(0,-2)
(2,0)
(-2,0)
++
5
4
3
2
1
1
2
3
4
5 x

Complete the steps to find 4.830 ÷ 5

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?

Dylan is evaluation the expression 13+19+7+10 at one step in his work, dylan rewrites the equation as 13+7+19+10 which property of addition must dylan have used when he evaluated the expression?