What do you call a person who makes faces all day long

You have two cards with a sum of -12 in both hands. a. what two cards could you have? b. you add two more cards to your hand, but the total sum if the cards remains the same, (-12).

Answer this question! 30 points and brainliest! only if you know the answer.

Find the number of liters in 12.8 gal of gasoline. round to the nearest hundredths