Seventy tickets were sold for a concert at $510. Each adult ticket cost $9 and each children's ticket cost $5. Be x the entrance fee for adults and be y the entrance fee for children.

a) Write down the system of equations that represents the problem:

Adriver from the university of florida women’s swimming and diving team is competing in the in ncaa zone b championships

Opposite angles in a parrellelogram are

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?