Using only FIVE FIVES, find 10 expressions (one for 0, one for 1, one for 2, 3,4,5,6,7,8,9,10 etc)

Which shows the pre image of triangle xyz

What is the y intercept of f(x)=(1/2)^x?

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.