M N is dilated by a scale factor of 6 to form M'N' M'N' measures 78. What is the measure of MN?

Which system of linear inequalites is represented by the graph?

Before simplifying, how many terms are there in the expression 2x - 5y + 3 + x?

Afamily has five members. a mom, a dad, two sisters, & a brother. the family lines up single file. what is the probabillity that the mom is at the front of the line