A scientist mixes water (containing no salt) with a solution that contains 20% salt. She wants to obtain 140 ounces of a mixture that is 15% salt. How many ounces of water and how many ounces of the 20% salt solution should she use?

What happens to the area as the sliders are adjusted? what do you think the formula for the area of a triangle is divided by 2?

If f(x) and g(x) are inverse functions of each other, which of the following shows the graph of f(g(x)

Dana wants to identify the favorite professional baseball team of people in her community. she stands outside a local sporting goods store and asks every other person who enters, "what is your favorite professional baseball team? " will the results of her survey be valid? explain.