Which correctly describes how contributions are made to the presidential election campaign fund?

What changes occur in the brain during the teenage years? 25 points, someone me out!a.) thinking becomes slower as the brain grows larger. b.) connections between neurons become stronger and faster. c.) unused neurons fuse together to form larger, better functioning neurons. d.) more neurons are developed.

Find the mass by adding the numbers from the three sliders

See the attachment and solve question 5th