The price a hat was $20. It is on sale for $15. What is the percent of change in the price of the hat?

Add 1/7 + -1/7 your answer should be reduced to its smallest form and should not be an improper fraction

Your client has saved $1,860 for a down payment on a house. a government loan program requires a down payment equal to 3% of the loan amount. what is the largest loan amount that your client could receive with this program

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