Please help me solve these problems

Ben is three times as old as samantha, who is two years older than half of michel's age. if michel is 12. how old is ben?

Solve the following inequalities and show the solution on a number line. 3/4 (2x-7) ≤ 5

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? )