Barney ate 21 M&M's. If he ate 15% of the bag of M&M's, how many were in the bag to start?

What two criteria are needed for triangles to be similar

Lines b and c are parallel. what is the measure of 2? m2 = 31° m2 = 50° m2 = 120° m2 = 130°

Atotal of 766 tickets were sold for the school play. they were either adult tickets or student tickets. there were 66 more student tickets sold than adult tickets. how many adult tickets were sold?