The total cost of the snow cones, t, depends on the number of snow cones ordered, s. The relationship is shown in the table. (plz don’t send a link:) WILL MARK BRAINLESS)

If x varies directly as y, and x = 7.5 when y = 10, find x when y = 4

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?

What is the equation of the parabola with focus (-1,-1) and directrix y=1?