What is the solution to the system of equations? (0, –1, 1)

(–1, –1, 1)

(0, –1, –1)

(0, 1, 1)

Which equation results from adding the equations in this system? x+6y=9 and -x+2y=-15

The two square pyramids are similar. find the total volume of both pyramids if the ratio of their surface areas is 9/16

What is the radical expression that is equivalent to the expression 27 1 over 5?