I have 3 questions! PLEASE HELP! I'm using ALL of my points.

(1) Solve and show your work for each question.
Note: Remember per the rule of 9s if you have a repeating and non-repeating component you need to handle them separately.
What is 0.42 expressed as a fraction in simplest form?
What is 0.4¯2 expressed as a fraction in simplest form?
What is 0.¯42 expressed as a fraction in simplest form?


(2) Jacob estimates the square root of 50 in the following way:
√75=3√25=3 * 5=15
Explain why her reasoning is incorrect.
Estimate the square root of 75 to the nearest thousandths without using your calculator. Show your work.
Note: If you use a calculator you will get the wrong answer. Please review 5.05 if you need a place to start.

Jacob estimates the square root of 50 in the following way:
√75=3√25=3 * 5=15
Explain why her reasoning is incorrect.
Estimate the square root of 75 to the nearest thousandths without using your calculator. Show your work.
Note: If you use a calculator you will get the wrong answer. Please review 5.05 if you need a place to start.


(3) Given the following numbers:
π,2√5,√5,√3
Without using your calculator, approximate the decimal equivalent of each number to the nearest tenth. Make sure to show your work.
Note: If you use a calculator you will get the wrong answer. Please review 5.05 if you need a place to start
Order the numbers from least to greatest.