A basketball bounces off the ground. The ball's height y (in feet) after t seconds can be modeled by y=-16t^2 +20t. How many seconds is the ball in the air. The basketball teaches its maximum height after 0.625 second. What is the maximum height of the bounce.

The number of hours per week that the television is turned on is determined for each family in a sample. the mean of the data is 37 hours and the median is 33.2 hours. twenty-four of the families in the sample turned on the television for 22 hours or less for the week. the 13th percentile of the data is 22 hours. approximately how many families are in the sample? round your answer to the nearest integer.

Apool measures 12.3 feet by 16.6 feet. if the longer wall of the pool has a diagonal of 17.8 feet, what is the volume of the pool? (round to nearest tenth)

Table which ratio is equivalent to 3: 7? 6: 7 3: 21 24: 56 15: 30