Can someone please help me I don’t know how to do this (Due today)

Write a recursive sequence that represents the sequence defined by the following explicit formula:

The data in the table represent the height of an object over time. which model best represents the data? height of an object time (seconds) height (feet) 05 1 50 2 70 3 48 quadratic, because the height of the object increases or decreases with a multiplicative rate of change quadratic, because the height increases and then decreases exponential, because the height of the object increases or decreases with a multiplicative rate of change exponential, because the height increases and then decreases

The longer leg of a 30° 60° 90° triangle is 16 times square root of three how long is a shorter leg