Need answer soon plz and you. if xc6 as 3: 9, then x is equal to

 <<<This is the exact same thing as x:6 as 3:9

To find x you need to cross multiply (meaning x will be multiplied by 9; and 3 will be multiplied by 6

The picture below shows the step of cross multiplication

The cross multiplication will give you:

9x = 18

Now you must isolate x. To do this divide 9 to both sides of the equation

9x/9 = 18/9

x = 2

Hope this helped!

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.