Maricia needs new shower curtains and four bath towels. the shower curtains costs $17.99. each bath towel costs $9.99. marica has a coupon. if she spends $50 she well get $10 off. what will her total be for the shower curtain and bath towels

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.