What is the mode of the dataset ? 79,82,85,91,97,73,88,87,85,92,90,85 ,86,91,94,85,92
a.)85
b.)87
c.)89
d.)91
what is the range of the dataset?
a.)24
b.)79
c.)85
d.)97

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?