Much help and a explanation would be really nice please and thank you

Quadrilateral wxyz is on a coordinate plane. segment yz is on the line x+y=7 and segment xw is on the line x+y=3. which statement proves how segments yz and xw are related

You have 138.72 in your saving account u take out 45.23 and 18.00 you deposit 75.85 into your account

Acircus act has 3 times as many elephants as acrobats. jorge noticed that all together there were 56 legs in the circus ring. how many elephants were in the show?