Aball is kicked upward with an initial velocity of 68 feet per second. the ball's height, h (in feet), from the ground is modeled by h=-16t^2+68t where t is measured in seconds. what is the practical domain in this situation?

Write an expression that has three terms and simplifies to 4x - 7. identify the coefficient(s) and constant(s) in your expression

You are at a restaurant and owe $38 for your meal. you want to leave a 20% tip. how much will your tip be?

Every weekday, mr. jones bikes from his home to his job. sometimes he rides along two roads, the long route that is shown by the solid lines. other times, he takes the shortcut shown by the dashed line. how many fewer kilometers does mr. jones bike when he takes the shortcut instead of the long route?