Which expression would be easier to simplify if you used the commutative property to change the order of the numbers? A. 30 + (-12) + 70
B. -10 + (-20) + 1/2
C. 60 +40 + (-25)

Ivan began dividing g2  – 6 by g + 1, noting that . he started by placing g in the quotient, as shown below.what is g2  – 6 divided by g + 1? g –  1 –  g + 1  – g  –  7 + g  –  5  + 

The perimeter of a movie screen is 54 meters. the screen is 18 meters wide. how tall is it?

How many grams the dog will eat in 3 days?