For what value of x is the rational expression below when x is equal to 4? X+20/x+4

A campus coffee shop charges $1.30 for a cup of coffee, and the tenth cup is free. If you take advantage of this offer, how much do you actually pay per cup of coffee, on average?

You have 10 liters of a juice blend that is 60% juice. How many liters of pure juice need to be added in order to make a blend that is 75% juice?

How to solve 7 + (-15) + 12

If it takes 8men to do a job in 4days how much days will it take 12 men

Round 26502.9085923 to the nearest hundredth

Explain what the expressions 4^5 means and how to find its value

Deep Blue, a deep sea fishing company, bought a boat for $250,000. After 9 years, Deep Blue plans to sell it for a scrap value of $95,000. Assume linear depreciation.

You are tossing 3 different colored coins. how many possible outcomes are there?

Kareem took 4 2/5 hours to clean the bathroom. Then he took 2 1/4 hours to clean the den. How much total time did Kareem take to clean the two rooms? Write your answer as a mixed number in simplest form.

For every 32 red balloons there are 56 blue balloons. if there are 7 blue balloons, how many red balloons are there?