May I please get help in 7th grade math?

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

Graph the line that represents a proportional relationship between d and t with the property that an increase of 33 units in t corresponds to an increase of 44 units in d. what is the unit rate of change of dd with respect to t? (that is, a change of 11 unit in t will correspond to a change of how many units in d? )

The functions f(x) and g(x) are shown in the graph f(x)=x^2 what is g(x) ?