Seraphina is driving two hours to visit her family. for the first hour, she traveled at a speed of 56 miles per hour. then, in the second hour, she traveled at a speed of 71 miles per hour. what is the percentage increase of seraphina's speed? if necessary, round to the nearest tenth of a percent.

26.71%

Step-by-step explanation:

Find the increase in speed by subtracting 56 mph from 71 mph.  This is 15 mph.

Then:

15 mph

= 0.2671

56 mph

The increase in speed was 26.7%

16.1%

Step-by-step explanation:

part 1 answer = 8

part 2 answer = 72

step-by-step explanation:

part 1 explanation = add all of the numbers, then divide by how many numbers you have. so, 200/25 = 8.

part 2 explanation = not gonna lie, this is hard to explain, so just google how to do it.

26

step-by-step explanation: