The data represent the number of phone calls received over an 8-day period.

day 1 2 3 4 5 6 7 8
calls received 6 4 9 8 10 10 11 10

what is the mean number of calls received per day?

a.
7

b.
8.5

c.
9.5

d.
10

Cassie is traveling 675 miles today to visit her brother and his family. so far, she has stopped for gas three times. at the first stop, she put in 7.1 gallons of gas and paid $23.79. at her second stop, she put in 5.8 gallons of gas and paid $19.08. and, at the third stop, 6.6 gallons and paid $20.39. at which stop did casey pay the most for gas?