What type of sampling is this: Group the students in a local college by year and then randomly select 15 students from each group

The sum of the angle measures of any triangle is 180 degrees. Suppose that one angle in a triangle has a degree measure of 6x+7 and another has a degree measure of 10x-3 . Write an expression for the degree measure of the third angle in the triangle.

1. Which of the following is a binomial? A 5b2 + 3b - 8 B-2x} + 14x=1 C - 9a - 15 D-v3 + 4uv+'lly - 1

A test has a mean of 80 and standard deviation of 4. what score would be 1 deviation from the mean

Noelle and karina both leave the Internet cafe at the same time, but in opposite directions. If karina travels 9 mph faster than noelle and after 8 hours they are 232 miles apart, how fast is each traveling?

Sid and Libby are planning to sell pies at a local fair. They spend $200 to rent a table at the fair. Their costs for ingredients, other supplies, baking, and packaging are $3.00 per pie. Sid and Libby plan to sell the pies for $8 each.

On a number line, M is at 0 and N is at 9. What is the coordinate of P, which is 2/3 of the way from M to N

The ratio of people who walk home from school to people who ride the bus home is 2:7 The number of bus riders is how many times the number of walkers

Y=-2x-1 slope intercept graph

Simplify 5 - (-1) 6 -6 4 -4

In your own words, define "like terms".