Find the values for x so that the perimeter of this rectangle is no greater than 90 centimeters.
30 cm
2x cm
Find the allowed values for x. Do not type any units.

Write numerical coefficient of y² in the expression 2x² - 15xy – 7y²

(05.02) mr. morris is going to save money and replace his sailboat's mainsail himself. he must determine the area of the mainsail in order to buy the correct amount of material. calculate the area of the parallelogram to determine how much material should be purchased. be sure to explain how to decompose this shape into rectangles and triangles. describe their dimensions and show your work.

Write as a product of two polynomials. 2(3–b)+5(b–3)^2