The sum of two numbers is 18. Twice the first number (x) minus the second number (y) is 6. Find the two numbers

What set does not contain -3 the set of all real numbers the set of all integers the set of all whole numbers the set of all rational numbers

Florence price's brownies and more sells all types of cookies and pastries. on tuesdays, they markdown all brownies 75% to a sale of $1.50 a dozen. find the selling price and the markdown of a dozen brownies.

Abarbecue sold 26 hamburgers and hot dogs. hamburgers sell for $3.50 each and hot dogs sell for $2.00 each. if the barbecue made $70 in sales, determine and state the number of hot dogs sold.