Each day, mr. samms randomly chooses 2 students from his class to serve as . there are 15 boys and 10 girls in the class. what is the probability that mr. samms will choose 2 girls to be ?

Find the solution of this system of equation -7x+y=-20 9x-3y=36

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.

Aline that intersects one of two parallel lines intersects the other also always sometimes never