Find the unit rate. 6,840 customers in 45 days.

UNIT RATE:
customers per day.

In a class, there are 12 girls. if the ratio of boys to girls is 5: 4 how many boys are there in the class

The mean finish time was 185.52 with a standard deviation of 0.327 minute. the winning car driven by chris finished in 185.13. the previous year race had a mean finish time of 110.3 with a standard deviation of 0.106. the winning car that year driven by karen finished in 110.13 minutes. find their respective z-scores. chris - z-score karen “- z-score

The sum of 5consecutive even numbers is 100. what is the first number in this sequence?