Find the mean.Six college buddies bought each other Christmas gifts. They spent 
, $151.62, $293.40, $195.49, $196.80, and $180.18. Find the mean amount spent for Christmas gifts.
A. $250.40
B. $328.00
C. $262.40
D. $218.66
Answer: D
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Find the GCD or LCM as indicated.Given 60 and 30, find the GCD.
A. 15 B. 6 C. 10 D. 30
At one high school, students can run the 100-yard dash in an average of 15.2 seconds with a standard deviation of 0.9 seconds. The times are very closely approximated by a normal curve. Find the percent of times that are:Between 15.2 and 16.1 seconds
A. 13.5% B. 34% C. 68% D. 50%
A student deposits $140 each month in a Holiday Club account at her bank. The account pays no interest. Write an equation that expresses the amount in her account in terms of the number of deposits. ?
A. 
B. 
C. 
D. 
E. none of these
Solve.Linda walked 
mi to the park and then another 
mi to the cafe. How far did she walk in total?
A. 
mi
B. 
mi
C. 
mi
D. 
mi