Solve the system of equations algebraically

17 in long 1.3 ft wide and 8in high what is the volume

Is the power produced directly proportional to the wind speed, give reasons for your answer?

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?