Find each sum, showing your work completely.

234 + 123.4 + 12.34=

Click on the graphic until you find the right quotient. (36xa - 30xb) ÷ (-6x2)

You paint a 1/2 of a wall in 1/4 hour. how long will it take you to paint one wall

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