Astore sells gift cards in preset amounts. you can purchase gift cards for $10 or $25. you have spent $285 on gift cards. write an equation in standard form to represent this situation. what are three combinations of gift cards you could have purchased

Gretchen is setting up for a banquet. she has 300 chairs and needs to distribute them evenly among t tables. how many chairs should she put at each table? write your answer as an expression.

Find the center and the radius of the circle with the equation: x^2-2x+y^2+4y+1=0?

Twenty points. suppose that one doll house uses the 1 inch scale, meaning that 1 inch on the doll house corresponds to 1/2 foot for life-sized objects. if the doll house is 108 inches wide, what is the width of the full-sized house that it's modeled after? in inches and feet