Im really confused on this question, and i need to submit this by can someone me and tell me how you answered this

The initial height is when the rocket hasn't actually launched yet. to find this, take t as 0. this means that your time = 0, so this is before the launch. if you substitute t = 0 into the equation you get:

0 + 0 + 2

= 2
so the initial height, when t=0 is 2 meters

This polygon has 4 sides
180(4-2) = 180(2) = 360 degree
80+90+2x + 3x = 360
170+5x = 360
5x = 190
x= 38
measure of angle t is 2(38)= 76
the answer is c. trust me
hope this !