Clara has pennies and quarters in her purse. she counts a total of 28 coins. if the total value of the coins is 76 cents, which system of equations can be used to determine the number of pennies and the number of quarters? assume p represents the number of pennies and q represents the number of quarters.

The number of 8th graders who responded to a poll of 6th grade and 8 th graders was one fourtg of the number of 6th graders whi responded if a total of 100 students responddd to the poll how many of the students responded were 6 th graders

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?

Tanyss's house has 25 windows. her brother has washed 22 of the windows. what percent of the windows has her brother washed?