Divide 500 in a ratio of 3:7

In what form is the following linear equation written y=9x+2

The graph below represents the number of dolphins in a dolphin sanctuary. select all the key features of this function.

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.