If casey walks 5 miles in 40 minutes then casey will walk how far in 70 minutes? round your answer to the nearest tenth of a mile

Eiko is wearing a magic ring that increases the power of her healing spell by 30%30\%30%30, percent. without the ring, her healing spell restores health points. which of the following expressions could represent how many health points the spell restores when eiko is wearing the magic ring?