The sum of nine times a number and fifteen is less than or equal to the sum of twenty four and ten times the number

If 90° < θ < 180° and cotθ = -1/3, then cscθ =

(! ) three cylinders have a height of 8 cm. cylinder 1 has a radius of 1 cm. cylinder 2 has a radius of 2 cm. cylinder 3 has a radius of 3 cm. find the volume of each cylinder

What is the expression in factored form? -20x^2 - 12x a. 4x(5x+3) b. -4x(5x-3) c. -4(5x+3) d. -4x(5x+3)