Researchers captured, tagged and released 81 sea lions in a particular area. Later, they captured 50 sea lions and, of them, 9 were tagged. About how many sea lions are in the area? *

Four individuals pool money together to start a new business and agree to split the profits equally. n invests $6,000, x invests $2,000, y invests $8,000 and z invests $4,000. if the profits for the first month were $100,000, y receives than if the profits were divided in proportion to how much they invested.

Square a has a side length of (2x-7) and square b has a side length of (-4x+18). how much bigger is the perimeter of square b than square a?and show all work! you so

Three consecutive integers have a sum of 234. what are the three integers