Given: z = 0.43y + 12 ; what is y when z = 28 ?
can someone explain this one?

How do the energy differences between the higher energy levels of an atom compare with the energy difference between the lower energy level of the atom

Why do scientists look for patterns in the world? a. patterns can explain observations. b. patterns never change, no matter what. c. patterns are easy for scientists to detect. d. patterns are all the same, through all time.

Why did southern business leaders want to increase the number of slaves