How do I use a ti 84 plus calculator to find population proportion

In 1960 Mexico’s population was approximately 35 million. By 2010, it had grown to approximately 112 million. Mexico’s land area is 761,605 square miles. Calculate the population density in 1960 and 2010. Put your numerical answers ROUNDED to the nearest WHOLE NUMBER in with the 1960 population density first followed by a comma and a space then the 2010 population density.  Do not include the units.

If an earthquake measures 6.8 on the Richter Scale, what is the intensity of this earthquake, relative to a 0-level earthquake? Round off your answer to the nearest integer.

Be sure that you show all of your work to reach your answer. Each step must be on a separate line.   Your method to reach your answer must be clear and include explanations.   Only round when you have reached a final answer.  Do not round during the steps to reach the final answer.  Use the longer number that your calculator gives you.  Please write it down clearly Final answer:   Round money to the nearest cents.  Example $46.778 rounds to $46.78  As part of your retirement planning, you purchase an annuity that pays 3.5% annual interest compounded quarterly   a.     If you make quarterly payments of $ 600 how much will you have saved in 5 years?   b.     Instead, if you make quarterly payments of $300, how much will you have saved in 10 years?

If someone could help me figure out how to find the solution for the second year? When I do it, I put 10,440 x (1.23) and get 12841 when rounded to a whole number. But that’s not correct.

If an earthquake is 2000000 times as intense as a 0-level earthquake. what is the Richter Scale ranking of this earthquake? Round off your answer to one decimal place.

In the year​ 2000, a country with a population of 90 million had 12,960 traffic fatalities. Find the 2000 fatality rate in deaths per​ 100,000 people. Round to two decimal places.

Part B A dermatology patient is treated with ultraviolet light having a wavelength of 345 nm. What is the wavelength expressed in centimeters? Express your answer with the appropriate units.

The formula for population mean is: ?=∑??μ=∑XN Solve it for ∑?∑X. Please do not upload a file with your answer but use "insert" button to copy your answer inside the answer window. Thank you.

10) LaQuinta can type 1/3 of a page in one minute. How long will it take her to type a 5-page report?