Answer:
(2x+3)(2x+3)
Step-by-step explanation:
a^2+2ab+b^2
It's impossible for 2 factors of 12 to add up to 16. So there would be no answer to that.
Answer:
The mean is 104 (Just add them all up)
The median is either 6 or 10 (its the number in the middle, sometimes there are two medians)
The mode is 15 (It shows up more than once)
The range is 13 (Take the smallest number and the highest number and subtract)
First of factor the common term 3a
3a(2a+7)/ 3a^2----------->

cancel out the 3
a(2a+7)/a^2--------------->

simplify
2a+7/a---------------------->

You are done
Hope this helps :)
6 HOURS TOTAL (COUNT BETWEEN THE HOURS 8;30 9;30 10;30 11;30 12;30 1;30 2;30)