Solve the equation by completing the square. round to the nearest hundredth if necessary. x^2-6x=20

Find the greatest common factor of 28 and 35

Scrub a dub toothbrushes are $4.00 each. there is a 10% discount, but there is also a 6% sales tax after the discount is applied. what is the new price after tax? round to the nearest penny

You receive 15% of the profit from a car wash how much money do you receive from a profit of 300