Can someone explain how to do this?

What are the digits that repeat in the smallest sequence of repeating digits in the decimal equivalent of 24/11?

9.4.34  question   to estimate the height of a stone  figure, an observer holds a small square up to her eyes and walks backward from the figure. she stops when the bottom of the figure aligns with the bottom edge of the  square, and when the top of the figure aligns with the top edge of the square. her eye level is 1.811.81 m from the ground. she is 3.703.70 m from the figure. what is the height of the figure to the nearest hundredth of a  meter?

The candy store is having a 30% off sale. emma is going to buy $7.50 worth of candy.how much will she pay after the discount