Seraphina is driving two hours to visit her family For the first hour, she traveled at a speed of 64 mies per hour. Then, in the second hour, she traveled at a speed of 66 miles per hour What is the percentage increase of Seraphina's speed? If necessary round to the nearest tenth of a percent A 3.1% B 96.9% C. 3% D 97%​

A 3.1%

Step-by-step explanation:

x = percentage (Has to equal 2)

64x = 66

For 3.1%: CORRECT

64(3.1%) = 2

64 + 2 = 66

For 96.9%: NOPE

64(96.9%) = 62

For 3%:

64(3%) = 1.92

y = 2x

step-by-step explanation:

if you divide each number in the sequence, you'll see that they all have a multiple factor of 2. each number in the series, and any other numbers which may continue, will be multiplied by 2. therefore, y is the next number in the sequence, and x is the current one, so, our formula will be y = 2x.