Ben had 3 boxes of blocks. each box had 50 blocks. he built a tower with 1/5 of blocks out of each of the blocks. how many blocks did ben use to build the tower?

Joanie watched 1 out of three of a movie in the morning

Gabrielle's age is three times mikhail's age. the sum of their ages is 40 . what is mikhail's age? __ years old

Simonne used the following steps to simplify the given expression. 12-3(-2x+4) step 1: 12+(-)+(-3)(4) step 2: 12+6x+(-12) step 3: 12+(-12)+6x step 4: 0+6x step 5: 6x what property of real numbers was used to transition from step 3 to step 4? •identity property of addition •inverse property of addition •associative property of addition •commutative property of addition