Solve the Problem Using the Elimination Method $\$ 81$ For 3 Days and 300 Miles, While Mary Was Charged

Solve the problem using the elimination method.
-Best Rentals charges a daily fee plus a mileage fee for renting its cars. Barney was charged $\$ 81$ for 3 days and 300 miles, while Mary was charged $\$ 145$ for 5 days and 600 miles. What does Best Rental charge per day and per mile?

A) $\$ 18$ per day and $11 \nsubseteq$ per mile
B) $\$ 10$ per day and $17 \nsubseteq 5$ per mile
C) $\$ 16$ per day and $11 \nsubseteq \subset$ per mile
D) $\$ 17$ per day and $10 \simeq$ per mile