Someone help, what’s 1+1?

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

If i have a 24 in loaf of bread and i cut it into two pieces one 9 in how long was the other

Mr. brettler is hanging up a 5-foot tall rectangular welcome sign in the gym. he has drawn a sketch on a coordinate grid. he has the lower vertices of the sign at (9, –3) and (–6, –3). where would the upper vertices be on the grid?