The ONLY multiple of 11 that's between 70 and 80 is 77 .
Answer:
Fish A is 4 inches.
Fish B is 5 inches.
Step-by-step explanation:
22=3a+2b
and
32=3a+4b
So,
a=4 and b=5
It’s A, if you add 70 and 65 you get 135 and 180-135=45 :)
Answer:
Excel attached with the solution.
Step-by-step explanation:
Mean

Standard deviation

Confidence interval

The formulas used are in the Excel file attached.