Which function has a vertex at the origin

A) f (x) = (x+4) ^2

B) f (x) = x (x-4)

C) f (x) = (x-4) (x+4)

D) f (x) = x^2

There are 4 blue, 6 green, 4 yellow, and 10 black marbles in a a bag. If one marble is picked at random, what is the probability of not picking a green marble.

The linear function graphed below represents the height of a stalk of corn since a farmer began using a new fertilizer. What is the initial value?

At a conference for 500 people, 30% of the participants are French, 15% are Americans, 5% are Germans, and are of other nationalities. How many French participants are at the conference? 30 150 160 250

You are looking for an after school job. One job pays $9 per hour. Another pays $12 per how, but you must buy a uniform that costs $39. After how many hours of work would your net earnings from either job be the same?

Sandra has 1.05 but she needs 1.50 how would she get it

7: Jim, Kelly, and Samantha sold fundraiser tickets for the band. Jim sold 10 more tickets than Samantha. Kelly sold 15 fewer tickets than Jim. They sold a total of 65 tickets. How many tickets did each band member sell

Use compatible numbers to estimate the quotient 2,545:4

What is the 4th term of (2x-y) ^10

A widget company made 3,600 widgets in 4 hours. they made the same number of widgets each hour. how many widgets did the company make in one hour?

How do you write the equation the quotient of 100 and twice 25 is equal to 2