The Whacky Whale's have two types of children's rides. The large whales can seat 6 children and the killer whales can seat 4 children. There are a total of 28 "whales" that can hold 136 children. How many of each type of whale are there?
Miiesha is painting the fence in front of her house. She earns 20 cents for each picket and 50 cents for each pole. She paints three times as many pickets as poles. How many pickets does Miiesha paint if she earns $27.50 for painting?
Mychayla used 5 rolls of film to take 84 photographs of the field day activities for the school newspaper. Some of the rolls of film were 24 exposures and some of them were 12 exposures. How many rolls of 24 exposure film did Mychayla use?
The eight members of the MathCounts team celebrated victory by shaking hands. What is the minimum number of handshakes required for all 8 members to shake everyone's hand at least one time?