14(5-1/5×25)+2÷4×1 how do i evaluate this expression ?

Arectangle has an area of 54 square feet. if the length is 3 feet more than the width, find the dimensions of the rectangle.

The stairs leading from the ground to the entrance of a plane forms a right triangle with the ground. if the distance of the stairs measures 22 feet and the ground distance measures 11 feet, how high is the entrance to the plane from the ground? which diagram represents this scenario? / 22ft © 22ft 11 ft 11 ft 22 it

Benefit(s) from large economies of scale, in which the costs of goods decrease as output increases. natural monopolles perfect competition