Jay is 3 years less than 4 times Nelly’s age ( n ). Which expression represents Jay’s age?

The expression 6x2 gives the surface area of a cube, and the expression x3 gives the volume of a cube, where x is the length of one side of the cube. find the surface area and the volume of a cube with a side length of 6m

What could explain what happened when the time was equal to 120 minutes

Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much