Determine the vertex of the parabola:
y = 5x^2 - 20x + 13

Kayla and alberto are selling fruit for a school fundraiser. customers can buy small boxes of grapefruit and large boxes of grapefruit. kayla sold 3 small boxes of grapefruit and 1 large box of grapefruit for a total of $65. alberto sold 1 small box of grapefruit and 1 large box of grapefruit for a total of $55. what is the cost each of one small box of grapefruit and one large box of grapefruit?

If the sales price of a dvd is $20 and the markup is 34%, what is the cost of the dvd?

What is 1/3x5 on anuber line what does it look like on a number line