Answer:
Step-by-step explanation:
The mean for brand A is higher than the mean for brand B
I believe its 48.4in^2 :)
12/3 is 4 and .31/2 is -15.5
First of all, the square root of 28 is 5.3. That is because 5.3*5.3=28.09 but mainly just 28. So now that we know what the square root of 28 is now we can multiply it by 3.
5.3*3= 15.9
Your final answer is 15.9