Adolphin jumped from 5 feet below the surface of the sea. jane wrote -5 to represent the depth from which the dolphin jumped. what does 0 represent in this situation.

the choices are:
a. the floor of the sea
b. the surface of the sea
c. the level to which the dolphin jumped
d. the level from which the dolphin jumped

Abouncy ball is dropped such that the height of its first bounce is 5.5 feet and each successive bounce is 64% of the previous bounce's height. what would be the height of the 7th bounce of the ball? round to the nearest tenth (if necessary).

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.

Three times the sum of a number and seven is negative thirty-six. what is the number?