Find the sum of the three expressions and choose the correct answer. 2x 2 y 2 - 7xy + 5y 2 8xy - 3y 2 x 2 y 2 + 4y 2

Sal is tiling his entryway. the floor plan is drawn on a unit grid. each unit length represents 1 foot. tile costs $1.35 per square foot. how much will sal pay to tile his entryway? round your answer to the nearest cent.

Graph the system: f(x)= 3/x-2; f(x)= 1/2x + 2

Jackie purchased 3 bottles of water and 2 cups of coffee for the family for $7.35. ryan bought 4 bottles of water and 1 cup of coffee for his family for 7.15. how much does each bottle of water cost? how much does each cup of coffee cost?