Shayna's school is selling tickets to a play. On the first day of ticket sales the school sold 13 senior citizen tickets and 13 student tickets for a total of $260. The school took in $212 on the second day by selling 13 senior citizen tickets and 9 student tickets. What is the price each of one senior citizen ticket and one student ticket

This question awards 100 ! i really don’t want to fail i will also mark you !

Select the correct answer from each drop-down menu. a system of equations and its solution are given below. system a complete the sentences to explain what steps were followed to obtain the system of equations below. system b to get system b, the equation in system a was replaced by the sum of that equation and times the equation. the solution to system b the same as the solution to system a.]

Astudy was interested in determining if eating milk chocolate lowered someone's cholesterol levels. ten people's cholesterol was measured. then, each of these individuals were told to eat 100g of milk chocolate every day and to eat as they normally did. after two weeks, their cholesterol levels were measured again. is there evidence to support that their cholesterol levels went down? how should we write the alternative hypothesis? (mud = the population mean difference= before - after)a. ha: mud = 0b. ha: mud > 0c. ha: mud < 0d. ha: mud does not equal 0