A bag contains four red marbles and six blue marbles. Another bag contains eight green marbles and five
yellow marbles. You randomly pick one marble from
each bag. What is the probability that one marble is red and one marble is yellow?

How to determine whether two known pairs of points are on the same line.

A. what does the point (4, 122) represent? b. what is the unit rate? c. what is the cost of buying 10 tickets?

You are standing next to a really big circular lake. you want to measure the diameter of the lake, but you don't want to have to swim across with a measuring tape! you decide to walk around the perimeter of the lake and measure its circumference, and find that it's 400\pi\text{ m}400? m. what is the diameter dd of the lake?