In a carnival game, you roll 2 dice. if the sum is 5, you receive a $6 payoff. if the sum is 10, you receive a $9 payoff. otherwise, you receive no payoff. what is the expected payoff? (round your answer to two decimal places.)

Which shows the pre image of triangle xyz

According to modern science, earth is about 4.5 billion years old and written human history extends back about 10,000 years. suppose the entire history of earth is represented with a 10-meter-long timeline, with the birth of earth on one end and today at the other end.

Some boys and girls were asked if they had a pet. one third of the group were boys. there were 20 boys. 20% of the girls had a pet. boys with a pet : girls with a pet = 1 : 5 i need to know how many girls there are.