Order the fractions and decimal from least to greatest 0.85 3-5 0.15 7-10

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?

What is the midpoint of np if n (1,9) and p (-5-1)

How many zeroes do we write when we write all the integers 1 to 243 in base 3?