Ms. Ripa attended a 2 hour orientation for her dance class, and now goes to class for 1 hour a week. Write an equation y=mx+b to fit the above word problem.

What is the smallest integer n such that n\sqrt{2} is greater than 20

An appliance store sells a washer-dryer combination for $1800. if the washer costs $300 more than the dryer, find the cost for each appliance.

The linear combination method is applied to a system of equations as shown. 4(.25x + .5y = 3.75) → x + 2y = 15 (4x – 8y = 12) → x – 2y = 3 2x = 18 what is the solution of the system of equations? (1,2) (3,9) (5,5) (9,3)