Answer: 3ln4 + 3lna
Step-by-step explanation:

You have to subtract the largest number from the smallest and you get your range. Which would be 7.5-2.1 equals 5.4 which is b.
I know! It's kind if annoying tbh...
Answer:
16
Step-by-step explanation:
Interval E contains (9,8,7,6,5,4,3,2,1,0,-1,-2,-3,-4,-5,-6)
so the numbers of the interval equals 16