Which expression is equivalent to (7x - - 2)?
a. 10x - 7.
b. 10x - 3
c. 4x - 7
d. 4x - 3

Sophia wrote an equation to represent the revenue of a movie theater for one day. she let x represent the number of child tickets sold and y represents the nunver of adult tickets sold. if a child ticket cost $4, an adult ticket cost $6, and the total revenue for the daybwas $420, which equation could sophia use to represent the number of chikd and adult tickets that were sold?

Yvaries directly as x. y =90 when x=6. find y when x=13

What is the mean of the data set 125, 141, 213, 155, 281