The answer is 11 im pretty sure<span />
Answer:
30feet/second
Step-by-step explanation:
The rate in feet per seconds of the diver will be the speed of the diver.
Speed is the rate of change in distance of a body.
Speed = Distance/Time
Given distance or height of drop = 450feet
Time = 15seconds
Rate of change in distance = 450/15
Rate of change in distance = 30feet/second
Ummmmm add 4? The difference between each number is the same