26. Multiple Response Which of the following expressions cannot be evaluated? a.4 1/2
b. (-4) 1/2
c. 4 -2
d. (-4) -2
e. 0 -1/2
f. 0 -2

Iam so stuck. what is the worked out answer for this question?

The figure above shows the lengths of thesides of a rectangle in cm. find the valuesof x and y and then the area of the rectangle. sides: top= 3x - yleft= 3y + 4bottom= 2x + yright= 2x - 3 use both methods, elimination and substitution, if possible.

Aman is 6 feet 3 inches tall. the top of his shadow touches a fire hydrant that is 13 feet 6 inches away. what is the angle of elevation from the base of the fire hydrant to the top of the man's head?