Solve and graph the inequality 7x< 56

The step function g(x) is defined as shown. what is the range of g(x)? ***answer choices in picture.

Determine the number of girls in a math class with 87 boys if there are 25 girls for every 75 boys

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.