Please help me simplify this equation

-5r×(-4r²)×3r⁵

Will mark determine whether the conjecture is true or false. give a counterexample for any false conjecture. given: points r, s, and t conjecture: r, s, and t are coplanar. a) false; the points do not have to be in a straight line. b) true c) false; the points to not have to form right angles. d) false; one point may not be between the other two.

21/2 divided by 3 1/3 = s divided by 4 1/4 . what is s?

Find the area of the trapezoid a. 150 ft^2 b. 300 ft^2 c. 45 ft^2 d. 75 ft^2