30 points A function is described by the equation y = 4x^2 - x - 9, in which y is dependent
on x. If a value for the independent variable is selected from the set {-3,-1, 2, 4,5}, which of the following is a corresponding dependent value?
which of the following is a corresponding dependent value?

A.-9
B.-4
C.80
D.36

What is the measure of angle x? answer

What is the value of x? enter your answer in the box.

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?