Anew sidewalk will be 4 feet wide and 50 yards long. eighty pounds of concrete mix covers 4 square feet and costs $3.65. how much will the concrete for the new sidewalk cost?

How many real and imaginary solutions does the equation x^2-3x=-2x-7 have?

Two streets intersect at a 30- degree angle. at the intersection, the are four crosswalks formed that are the same length. what type of quadrilateral is formed by the crosswalks?

Factor the polynomial by its greatest common monomial factor.