Sophia earned $299 last month translating 2 documents. Given that of the money she earned was from translating the second document, which of the following is the closest to the amount of money Sophia earned from translating the second document?
Benjamin took a cab to work yesterday. If he left a tip of on the $19.64 fare, determine about how much the tip was.
By dividing by 4 and multiplying by 3, calculate of 600 mentally.