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You DO have to be careful with Small Populations. Look up "Finite Population Correction Factor". Without that, you can mandate samples greater than the entre population. That's obviously no good. P.S. Thank you for thanking. When we get enough information and we can answer the question...

Write out an expression that represents the answer. If there are only two rows, 600 + 660 = 70,800, for example. Obviously, this is preposterous and will not lead you to a solution. What needs to be changed to make it other than preposterous? Obviously, again, two rows is an nsufficient...

How could it be anything else? \sqrt{n} is rather a clear indication.

The purpose of my response was to invite YOU to participate more effectively in the solution. You're not going to supply the correct monthly discount factor?

I think we are masterfully confused. Are these payments DAILY or MONTHLY or both? We'll need a problem statement that makes sense. So far, we don't have one. For 2 reasons, I do not believe we are replacing ONLY the "April Payment": 1) Why are there remaining payments after the debt is...

Have you considered presenting the ENTIRE problem and some of your own work?

Too many to pick just one. Count literally ANYTHING.

I don't understand your goal. all of your "average" business may not be meaningful at all. Average number of days. Average DAILY SALES. ARE THOSE REALLY MEANINGFUL OR USEFUL? Maybe just draw a line? It doesn't have to be a line. Choose any kind of mechanism you like? Seems to me, though...

Have you tried ANYTHING? You did not SHOW us anything. What is d/dx h(y)

How would you multiply 23*23 = 23^2? 2^2 + 3^3 = 4 + 9 = 13. Hmm... That doesn't seem to work How about 20*(23) + 3*23 - 460 + 69 = 529... That seems better. Maybe (20 + 3)*(20 + 3) = 400 + 60 + 60 + 9 = 529... Now we're getting somewhere. It is NO difference with variable names. Use...

In general, there is no DIRECT solution for the interest rate, given all the other pieces. Iterative, numerical methods are the way to go.

You could notice that (1+t)^104 / (1+t)^104 = 1.

Who told you that variable names were ANY different from numbers? Why did you believe them? 2(3+4) = 2*3 + 2*4 x(y+z) = x*y + x*x cat(dog + mouse) = cat*dog + cat * mouse

Not enough information. One must know WHEN in November the birthdayS are and WHO HAS OR HAS NOT HAD A BIRTHDAY IN THE OBSERVATION MONTH.

No good. Your units will save you. "0.8 g" Cannot BE a density. It's a mass.

Now, you tell us if that negative sign should be there.

In the old days, 69! was the greatest factorial that could be represented on the screen of a hand-held calculator. This was a limit imposed by the 2-digit exponent. Listen to your words: "There is no context." This is utterly preposterous. Who gave it to you? Context. Was there a question...

Sorry, but "18 DECIMAL" doesn't mean anything. It MAY mean, 18 digits left of the decimal point.

Which 5?