Answer:
216
Step-by-step explanation:
A=2(wl+hl+hw)=2·(12·2+6·2+6·12)=216
Yes, absolutely! You have correctly identified a good line of best fit and found a point that matches with the 450 thousand. Good job!
The way the this is worded means to turn it into a improper fraction which means the answer is 11/4
15/7 or 2 1/7 (same number but the first one is an improper fraction and the other is a mixed fraction)