John and 2 friends are going out for pizza for lunch. they split one pizza and 3 large drinks. the pizza cost $14.00. after using a $7.00 gift certificate they spend a total of $12.10. write an equation to model this situation, and find the cost of one large drink.

State whether weight is a function of height for the six students and explain. a. yes, height is a function of weight because two students weigh 165 pounds but have different heights. b. no, height is not a function of weight because two students weigh 165 pounds but have different heights. c. yes, weight is a function of height because for each value of height there is one corresponding value of weight. d. no, weight is not a function of height because there is not enough data to determine a function.

Need on this geometry question. explain how you did it.

Astuntman jumping off a 20-m-high building is modeled by the equation h=20-5t^2, where t is the same in seconds. a high-speed camera is ready to film him between 15m and 10m above the ground. for which interval of time should the camera film him?