Please answer this problem

4 or 8.94427190

Step-by-step explanation:

You would simply get rid of the exponential by squaring the 80 and when you do it by hand, you should get 4 because  you can break down to 16 and 5 since when you multiply them together, you get 80. After that you just gotta simplify it by taking the  the (which is 4 btw) and you keep the 5 inside the square root since it cannot be broken down anymore.

and if you plug it into a calculator, you get your answer in a decimal form which will be 8.94427190.

answer set (b) 0.5, 3/4 80% is in order from least to greatest.  

step-by-step explanation:

in order to compare rational numbers to each other, it is much easier if they are in the same form.   typically, the best form in which to evaluate rational numbers is in decimals.   in order to convert a percent to a decimal, you would divide the given percentage by 100.   you can also accomplish the conversion by moving the decimal point over two places to the left.   for example, the decimal value of 80% is 80/100, or 0.8.   in order to convert a fraction to a decimal, you need to divide the numerator by the denominator.   for example, 3/4 is 0.75.   so, for choice (b) 0.5 3/4 (0.75), 80% (0.8) is the only choice in which the numbers are in order from least to greatest.  

step-by-step explanation: