Write an equation to represent the relationship between the independent and dependent qualities shown in the table. INPUT (x) 0 1 2 3 4 OUTPUT(y) 0 4 8 12 16​

I'm confused on this could anyone me and show me what i need to do to solve it.

Acampus club held a bake sale as a fund raiser, selling coffee, muffins, and bacon and eggs sandwiches. the club members charged $1 for a cup of coffee, 3$ for a muffin , and $4 for a back. and egg sandwich. they sold a total of 55 items , easing $119. of the club members sold 5 more muffins than cups of coffee, how many bacon and egg sandwiches he’s did they sell

An 18% discount on a watch saved a shopper $72. find the price of the watch before the discount