Apatio floor is shaped like a rectangle with a width of w cm and a length of 21 ft. find an expression that represents the area of the floor.

What is the square root of 45? (step by step working plz)

What number line represents the solution set for the inequality -1/2 greater than or equal to 4

Which statement is true about the extreme value of the given quadratic equation? a. the equation has a maximum value with a y-coordinate of -21. b. the equation has a maximum value with a y-coordinate of -27. c. the equation has a minimum value with a y-coordinate of -21. d. the equation has a minimum value with a y-coordinate of -27.