What two numbers multiply to -42 but also add up to -11

Scale factor of 2 is used to enlarge a figure as shown below the area of is 18 in.²

Match the equivalent expressions. x - 3y + 12 12 - 3y - 2x + x + 2x 3x + 2y - 2x + y + 12 3y + 12 3x + y - 12 4y + 3y + 3x - 6y - 10 - 2 x + 3y + 2x - 3x + 7 + 5 x + 3y + 12 5 + 2y + 7x - 4x + 3y - 17

You are at a restaurant and owe $38 for your meal. you want to leave a 20% tip. how much will your tip be?