85001 round to the nearest ten thousand

Atriangle has an area of 72 square inches. if the base of the triangle has a length of 18 inches, what is the height of the triangle? use the formula for the area of a triangle: area = (base)(height) type a numerical answer in the space provided. do not include the units or spaces in your answer.

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

Can someone me with the property questions for 12 13 and 14 plz