Antonio Rubio is a shirt silk screener. The owner will pay him $0.45 per shirt and $0.75 per sweatshirt. On Tuesday Rubio completed 288 shirts and 72
sweatshirts. What is his total pay?

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

Weekly wages at a certain factory are normally distributed with a mean of $400 and a standard deviation of $50. find the probability that a worker selected at random makes between $450 and $500

What number line represents the solution set for the inequality -1/2 greater than or equal to 4