Which table correctly lists the reasons to prove L1 =L3 given that AB intersect CDx

I'm a polygon i have no parallel lines i am formed 3 line segments i have one right angle two of my angles are angles what am i

Sam opened a money-market account that pays 3% simple interest. he started the account with $7,000 and made no further deposits. when he closed the account, he had earned $420 in interest. how long did he keep his account open?

Which of the following vectors are orthogonal to (2,1)? check all that apply