Which of the following is equivalent to the expression below when x ≥ 0? √x³ + √36x³ - 4x√x

Translate the word phrase into a math expression. 15 fewer than the product of 4 and a number. (pls immediately)

The equation respenting the left table is

Gregory draws a scale drawing of his room. the scale that he uses is 1 cm : 4 ft. on his drawing, the room is 3 centimeters long. which equation can be used to find the actual length of gregory's room?