Use distributive property to write an equivalent variable expression

4(x+3)

Factor this polynomial completely. 12x^2+ x-6

Abarge can safely haul no more than 400 tons across the river. the barge has an empty weight of 24 tons. the average weight of the railroad cars is 4 tons each.bhow many railroad cars can the barge haul?

What is the sum of the measures of the interior angles of an octagon