Not sure how to solve. julia uses the shadow of a flagpole to estimate its height. she stands so that the tip of her shadow coincides with the tip of the flagpole’s shadow, as shown. julia is 5 feet tall. the distance from the flagpole to julia is 28 feet, and the distance from the tip of the shadows to julia is 7 feet. calculate the height of the flagpole. a. 13 feet b. 980 feet c. 39 feet d. 25 feet