Please help me Write a 2 column proof.
Given: ∠1 and ∠5 are supplementary
Prove: l and m are parallel

Ineed to learn how to solve this problem

Worth 15 points handsome jack is buying a pony made of diamonds. the price of the pony is p dollars, and jack also has to pay a 25% diamond pony tax. which of the following expressions could represent how much jack pays in total for the pony? a= p = 1/4 b= p+0.25p c=(p + 1/4)p d=5/4p 0.25p choose 2 answers

What is the argument of 3 - 3i? 300°315°330°345°