In a physics class demonstration, a ball is dropped from the roof of a building, 72 feet above the ground. The height h, in feet, of the ball above the ground is given by the function h= − 16t^2+ 72 where t is the time in seconds. How long does it take for the ball to reach the ground?

The spring the owner of a sporting good store decreases the price of winter gloves from $10 to $8 each increases the price of swimming goggles from $8 to $10 without doing the math you think the percent decrease in the price of the gloves the same as the percent increase of the goggles explain why or why not

Find the slope and the y-intercept if there's one and the equation of the line given these two points( 3, 2) and( 3, -4)

Una caja de galletas contiene 16 paquetes y cada una de estas tiene 12 galletas y se quieren repartir entre 6 niños ¿de cuantas galletas le toca a cada niño?