Solve
-The Monthly Cost of a Certain Long Distance Service $C ( t ) = 0.06 t + 7.95$

Solve.
-The monthly cost of a certain long distance service is given by the linear function $C ( t ) = 0.06 t + 7.95$ where $C ( t )$ is in dollars and $t$ is the amount of time in minutes called in a month. Find the cost of calling long distance for 80 minutes in a month.

A) $\$ 11.75$
B) $\$ 4.80$
C) $\$ 12.75$
D) $\$ 15.95$