A bag contains 9 blue coins and 3 red coins. A coin is removed at random and replaced by three of the
other color.
Part 1 out of 3
What is the probability that the removed coin is blue? Enter your answer as a simplified fraction.
The probability that the removed coin is blue is

Frank has a devised a formula for his catering business that calculates the number of meatballs he needs to prepare. the formula is m=4a+2c, where c=number of children; m=number of meatballs; a=number of adults. how many meatballs are required for a party of 10 adults and 5 children?

Segment wx is shown explain how you would construct a perpendicular bisector of wx using a compass and a straightedge

Klmn and pqrs are similar trapezoids. which side of pqrs corresponds to lm