Which expression is equivalent to (5g^4+5g^3-17g^2++6g^4-7g^2-12/g+2

Each of the four sides of a swimming pool measures 9 meters. the pool is 5 meters deep. how much water will be needed to fill it completely? a. 45 cubic meters b. 81 cubic meters c. 225 cubic meters d. 405 cubic meters reset next

One line passes through (-7,-4) and (5,4) . another line passes through the point (-4,6) and (6,-9)

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?