Kelsey keeps track of how much money she makes each time she babysits. For the last 10 jobs she made:

$7.50, $10.50, $5.00, $4.50, $3.50, $7.50, $4.00, $10.00, $7.50, and $5.00.

What is the mean amount of money Kelsey made?

O

A. $5.50

OB. $6.25

O C. $6.50

O D. $7.00

O E. $7.50