The school store sells 4 pencils for 50 cents. at that rate, what would be the cost of 10 pencils?

Use set builder notation to represent the following set: { -3, -2, -1, 0}

Which expression gives the area of the triangle shown below

Lindsay used two points, (x,y; ) and (+2.82), to find the equation of the line, y = mx + b, that passes through the points. y2-y, first, she used the definition of slope and determined that the value of mis x, - . given this information, which expression must represent the value of b?