Help out please

Given a(-12,5) and b(12,29) find the point that divides the line segment ab three-eighths of the way from a to b

Roger and natalie travel in similar cars. roger's car drives the two miles to school in 7.5 minutes. natalie drives the same distance in the opposite direction but in only 6.5 minutes. what is true of their velocities?

Hi my sisters and brothers can tell me the answer because i don’t understand the question