Which problem solving strategy would be best to solve this problem?Brandon went to the store and spent $2.50 on pencils. He spent half of what he had left on a notebook and paper. When he got home he had $5.00 left. How much money did Brandon have before going to the store? A. make a table, chart or list
B. work backwards
C. use a formula
D. look for a pattern

Is this a polynomial function? i need to know asap

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