Bryan is starting a tutoring company that charges 10 as an initial fee and 7.50 dollars per hour of tutoring. Laura is starting her own company and she wants to change less as an initial fee, but more per hour. Which equation could represent her charges?

A
y = 2x + 3


B
y = 5x + 12

C
y = 9x + 8

D
y = 7.5x + 10