Nakesha's Sporting Goods subscribes to the $89.99 level of service for two cell phones. Nakesha's cell phone usage last month was 1.256 minutes. Federal excise tax on usage is 4.3%.
What was the total cost of service last month?

Renee hiked for 6 3/4 miles. after resting, renee hiked back along the same route for 5 1/4 miles. how many more miles does renee need to hike to return to the place where she started? represent your answer as a simplified mixed number, if necessary.