What is the surface area of a sphere with a radius of 12 units? A. 14471 units2
B. 576 units2
C. 5767 units2
D. 2887 units2

here's the solution :

In a sphere,

let's solve

hence, correct option is C. 576π unit²

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.  

you probably already have the answer but anyways it's b. 15.0

step-by-step explanation: