The table and the graph show the height and weight of ten basketball players which statement is true

Which one ? is the answer and how to find this answer

Two years ago a man was six times as old as his daughter. in 18 years he will be twice as old as his daughter. determine their present ages.

Mrs. blake's bill at a restaurant is $42.75. she wants to leave the waiter an 18% tip. how much will she pay in all, including the tip?