Jaoquin buys 3 dozen lightbulbs. after changing the lightbulbs in his house, he has 15 lightbulbs left. how many lightbulbs did he use? explain your work. i need the like right

The pattern of this wave changes between its beginning and end. what is true about the amplitude and wavelength of the wave when the pattern changes?

Imagine that certain laws of physics could be ignored and you were able to travel vast distances in moments. now imagine that you traveled to an earth-like planet located light-years away that is known to support life. think about what you’ve learned in this unit and make an argument for what you think would be the dominant type of life form on this planet. consider whether a notochord is required for an organism to manipulate its environment and become a dominant creature.

About __ of the mass of the cell is water