Answer key to the senior class at high school a and high school b planned seperate trips to yellowstone national park. the senior class at high school a rented and filled 9 vans and 12 buses with 630 students. high school b rented and filled 1 van and 6 buses with 252 students. each van and each bus carried the same number of students. find the number of students in each van and in each bus.

If x = 12 and y = 3, what is the value of x - y 2? 81 6 3 18

Dexter read 11 science fiction books and 5 history books. lena read 9 science fiction books and 4 history books. compare the students’ ratios of science fiction books to history books. 1. determine the ratios’ form:    science fiction books to history books 2. write the ratios as fractions:    dexter: 115; lena: 94 3. rewrite with a common denominator. 4. compare. 5. answer the question. determine which shows the correct comparison of the ratios for this problem.

Two variables, x and y, vary inversely, and x=12 when y=4. what is the value of y when x=3?