Please help!
What is the median of the data set represented by the dot plot?

Solve 2x+y=3 x+y=5 in substitution method

The two square pyramids are similar. find the total volume of both pyramids if the ratio of their surface areas is 9/16

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