. A bag contains 3 red marbles and 2 yellow marbles. What is the probability of
drawing a red marble, and then drawing a red marble again after replacing the first
marble?

Answer these questions showing your work plz

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.

Define multiplicative inverse. give an example of a number and its multiplicative inverse.