A foul ball leaves the end of a baseball bat and travels according to the formula h(t) = -16t? +64t where h is the height of the ball in feet and t is the time in seconds.
How long will it take for the ball to reach a height of 64 feet in the air?

Kayla wants to find the width, ab, of a river. she walks along the edge of the river 65 ft and marks point c. then she walks 25 ft further and marks point d. she turns 90° and walks until her location, point a, and point c are collinear. she marks point e at this location, as shown. (a) can kayla conclude that δ and δ are similar? why or why not? (b) suppose de = 15 ft. what can kayla conclude about the width of the river?

Pepe and leo deposits money into their savings account at the end of the month the table shows the account balances. if there pattern of savings continue and neither earns interest nor withdraw any of the money , how will the balance compare after a very long time ?

The cost of using a service is $0.25 per min. what equation correctly represents the total cost c, in dollars, for d days of use?