Bacteria Dilution

In the microbiology lab you have a test tube that is filled with undiluted bacteria. Unfortunately there are so many bacteria in this one test tube that you can't count them, but you would still like to estimate the concentration of bacteria per milliliter. In order to reduce the number of bacteria per milliliter to a manageable number, a process called a 1/10 dilution series is performed. In this process at each stage the number of bacteria per milliliter is reduced by a factor of 10. After performing this process 5 times, the number of bacteria in one milliliter is 89.

How many bacteria per milliliter were in the original test tube?

If the original test tube contained 5 milliliters of solution how many bacteria would be in the test tube?

If the solution was obtained from a beaker containing 3 (liquid) quarts, how many bacteria would be in the beaker?