Which ordered pair represents a ratio equivalent to the ratio of teaspoon of lemon juice to cups of lemonade show by the point on the graph

Apublic library wants to place 4 magazines and 9 books on each display shelf. the expressions 4s +9s represents the total number of items that will be displayed on s shelves. simplify this expression

Write an equation of the line that passes through 9,2 and is parallel to the line y=5/3x+9

Find the center of the circle that can be circumscribed about efg with e(4,4) f(4,2) g(8,2)