What is the product -3x^2y and (5xy^2+xy)? A. -15x^3y^3-3x^3y
B. -15x^3y^3+xy
C. -15x^3y^3-3x^3y^2
D. -15x^2y^2-3x^2y

Atriangle has a side lengths of 18cm, 80 cm and 81cm. classify it as acute obtuse or right?

Delbert keeps track of total of the total number of points he earns on homework assignments, each of which is worth 60 points. at the end of the semester he has 810 points. write an equation for delbert’s average homework score a in terms of the number of assignments n.

Urgent need asap △abc is similar to △xyz. also, side ab measures 6 cm, side bc measures 18 cm, and side xy measures 12 cm. what is the measure of side yz ? enter your answer in the box.