The total number of cars in a large parking garage was recorded on four different days. What was the average rate of change in the total number of cars per day between February 8 and February 22?

Do 12/14 and 8/10 have the same value? explain your answer.

What is the number 321,000,000 in scientific notation? also what is the number? ?

Kyle and elijah are planning a road trip to california. their car travels 3/4 of a mile per min. if they did not stop driving, how many miles could kyle and elijah drove in a whole day? ? 1 day = 24 hours. plzzz write a proportion i will give you 100 points