Solve the Problem $6^{\circ}$ Fahrenheit $5^{\circ} \mathrm{F}$ Per Day for 7 Days $-29^{\circ}$

Multiple Choice

Solve the problem.
-On January 5 , the temperature at a camp site near the arctic circle was $6^{\circ}$ Fahrenheit. The temperature dropped $5^{\circ} \mathrm{F}$ per day for 7 days. What was the temperature on January 12 th?

A) $-29^{\circ}$
B) $30^{\circ}$
C) $29^{\circ}$
D) $-30^{\circ}$