A rectangle has a width of 2x + 1 and a length of 5x – 4, which expression would represent the area of the rectangle?

(2x+1)(5x-4)=area

Step-by-step explanation:

length+width=area then you can simplify though If needed for the answer

b

step-by-step explanation:

the word superfluous means unnecessary

answer: the answer is (b) amie should have multiplied

step-by-step explanation: given a sphere and a cylinder with same radius and height.

let, 'r' be the radius of the cylinder and sphere and 'h' be the height of the cylinder. according to the question,

r = h.

now, the volume of the sphere will be

and the volume of the cylinder will be

therefore, we have

thus, ammie should have multiplied the volume of the sphere