He would travel 67 1/2 miles in an hour.
An = A1 + (N-1)d
A1 is the first term (in this case 2)
d is the common difference (what is the difference between all consecutive even numbers? 2)
N is the number of terms to find (in this case 29)
An = 2 + (29-1)2 = 58
I would say none of the above, unless you typed it wrong. The sum is the product of the number of terms minus one and two, plus two more. So it's almost answer B but not really. Good luck with this one.
The mode is 17 because it occurs most often.
There are 23 data points, so the 12th one is the median (middle). The median is 15.
The mean is 15.435 because it is the average. Add up all the ages, then divide by the number of people.
