exam Maths Puzzle Numerical Ability

How do you graph these inequalities 2x > -6 and x - 4 < 3?

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exam Other Question

The volume of a cube is given by V=s^3. Find the length of a slide of a cube if the Volume is 729cm^3.
answer:
show work An airplane flew for 6 hrs w/ a 22-km/h tail wind.THe return flight against the same wind took 8 hrs.Find the speed of the plane in still air.