Heather has a bag of 15 red, 11 orange, 9 yellow, 12 green, 6 blue and 11 purple markers. how many times would you expect heather to pick a red marker if she picked a marker 90 times?

The expression 3 + (2+n) is equivalent to?

Suppose the function f (x) = 0.035x represents the number of U. S. dollars equivalent to x Russian rubles, and the function g (x) = 90x represents the number of Japanese yen equivalent to x U. S. dollars.

After 2 hours, there are 1,400 mL of fluids remaining in a patient's IV. The fluids drip at a rate of 300 mL per hour. Let x be the time passed, in hours, and y be the amount of fluid left in the IV, in mL.

The sum of two numbers is 24. If 4 less than 6 times the smaller number equals 5 more than 3 times the larger, what are the numbers?

A motorboat can travel 35mph in still water. If the boat can travel 7 miles downstream at the same time it takes to travel 3 miles upstream, what is the rate of the river's current?

Suppose that a scholarship qualifying exam is given to a large number of students every year. Over the last 5 years, the exam results are normally distributed with a mean of 35 and a standard deviation of 7.

What is 4/6 times 3/5?

How do I solve - 2 (x+1) = -8x+1

114 seniors out of a HS of size 430

The president of a company creates a graph of the price of the company's stock over one year. He describes the graph as follows: • The price of the stock rose to about $17 before falling to about $4.