Olivia, Nicholas, Chloe, and Ethan each took many samples from the same population of students. The number of students in each of their samples is
shown in the table below. Which person's sampling distribution is most likely
to closely approximate the population distribution?
Person taking sample Number of students in each sample
Olivia
29
Nicholas
70
Chloe
56
Ethan
91
A. Olivia
B. Chloe
C. Ethan
D. Nicholas

The students at jefferson middle school are raising money for a charity by selling t-shirts and hats. the number of t-shirts sold was 3 times the number of hats. the profit was $5 for each t-shirt sold and $2.50 for each hat sold. the students raised $840 for the charity. they used the system below to analyze their success and found the solution to be (144, 48). 5x+2.50y=840 x=3y how much did they earn from t-shirt sales?