So to rewrite it so that we can find the side, we just need to isolate the a variable.

So firstly, divide by 6 on both sides of the equation: 
Next, square root each side, and your answer should be 
3.9 and 5.3, when rounded off and mult. together, produce the product 20.
Thus, the decimal point must follow the first two digits of your answer, whether estimate or "exact."
3.9*5.3 = 20.67 by calculator.
Answer:
Step-by-step explanation:
6(1/3X7/5)=(6X1/3)X7/5
6X7/15=6/3X7/5
14/5=14/5 (ASSOCIATIVE LAW)