Please help me I think it’s easy for you to do so u can get extra points!!

Average salary for a medical assistant is $31,220 which is a 20% income tax bracket how much money would they pay in income tax?

Oscar and julie ashton are celebrating their 15th anniversary by having a reception hall. they have budgeted $4,500 for their reception. if the reception hall charges a $90 cleanup fee plus & 36 per person, find the greatest number of people that they may invite and still stay within their budget.

Solve the system of equations y= 3/2 - 1, -x+ y =-3