Igaruntee nobody can answer this question as it is the hardest question in the world! brainliest to the first to answer!

brenda’s school is selling tickets to a spring musical. on the first day of ticket sales the school sold 3 senior citizen tickets and 9 child tickets for a total of $75. the school took $67 on the second day by selling 8 senior citizen tickets and 5 child tickets. what is the price each of one senior citizen ticket?

1. there are 25 students who started computer programming in elementary school and 25 students who started computer programming in middle school. the first group had a mean final project grade of 95% and the second group had a mean final project grade of 92%. the line plot shows the differences after 10 rerandomizations. determine whether the difference in the means of the two groups is significant based on the line plot. explain your answer.

20 ! brainliest ! add and simplify your answer.

Mahnoor randomly selects times to walk into a local restaurant and observe the type of music being played she found that the restaurant was playing country 11 times rock & roll 17 times and blues 8 times use the observed frequencies to create a probability model for the type of music the restaurant is playing the next time mahnoor walks in.