. Elizabeth makes her exercises a little harder each time she does them. Which principle of fitness is she following? Overload Specificity Individuality Reversibility 3. What principle

overload

Explanation: She is using overload which mean that the targeted exercises will improve specific  fitness goals when the person work harder.

In order to improve, athletes must continually work harder as their bodies adjust to existing workouts. This plays a role in skill learning because the body will adapt to the workload placed upon it.

the old price per ounce is c/4.

the new price per ounce is c/3.6.

the ratio of the old price to the new one is

(c/4)/(c/3.6) = (c/c)×(3.6/4) = 0.9 . . = 9/10 . . "nine tenths" in either form