If PS = 2x + 18 and QR = 5x - 9, solve for x.

Jada has a meal in a restaurant she adds up the prices listed on the menu for everything they ordered and gets a subtotal of $42.00. when the check comes, it says they also need to pay $3.99 in sales tax. what percentage of the subtotal is the sales tax

Interest begins accruing the date of the transaction except for auto loans mortgages credit card cash advances credit card purchases

Abox holds 500 paperclips. after a week on the teacher's desk 239 paperclips remained. how many paperclips were used?