Plz give a step by step two column proof. Thank you in advance. The first step should be the given. After that there should be 3 steps.

ik how do do this just give me a few minutes and i will give it to

= 5

step-by-step explanation:

to find the 15th term substitute n = 15 into the nth term formula

= (- 3 × 15 ) + 50 = - 45 + 50 = 5

answer: no

step-by-step explanation: because the big angle will spread away the 2 side that it is on and make the opposite side even longer.