Explain how to solve the question over compound dependent events and explain how I got the answer. Joe has 5 blue marbles, 4 green marbles, and 1 red marbles. He pulls one marble out without replacing it and then pulls out another. What is the probability that he will pull a blue marble then a red marble? (solve and expplain your answer, simplify the problem if it can be simplified)

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

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.

This is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 5 terms.