the total cost of an nintendo switch is $374.50 and it cost $350 before tax find the percent of sales tax

What is the difference between the points (4, 7) and (4, -5)? a. 0 units b. 2 units c. 4 units d. 12 units

Suppose i flip two identical coins. what is the probability that i get one head and one tail?

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