In a class of p students, the average ( arithmetic mean) of the test scores is 70. In another class of n student, the average of the scores for the same test is 92.
When the scores of the two classes are combined, the average of the test scores is 86.
What is the value of P/N?

The system of equations graphed below has how many solutions?

Mama mia restaurant used 1 2 2 1 ? of their mozzarella cheese making pizza and the remaining 6 4 64 ounces making pasta. how many pounds of mozzarella cheese did mama mia start with?

According to the 2008 u.s. census, california had a population of approximately 4 × 10^7 people and florida had a population of approximately 2 × 10^7 people. which of the following is true? a. the population of california was approximately two times the population of florida. b. the population of florida was approximately twenty times the population of california. c. the population of florida was approximately two times the population of california. d. the population of california was approximately twenty times the population of florida.