PLEASE HELP ME!! What describes the status of Mary's budget?

A). it is balanced
B). it is in Surplus
C). it is deficit

How do you answer this question? (step by step)

The sum of two numbers is 86, and their difference is 20. find the two numbers

Which shows the correct lengths of side c in both scales? scale 1: 45 m; scale 2: 60 m scale 1: 60 m; scale 2: 45 m scale 1: 36 m; scale 2: 27 m scale 1: 27 m; scale 2: 36 m mark this and return save and exit