Carlos made up a game where, in a deck of cards, the red cards (hearts and diamonds) are negative and the black cards (spades and clubs) are positive. All face cards are worth 10 points, and number cards are worth their value. Samantha has a king of hearts, a jack of diamonds, and a 3 of spades. Write an expression to find the value of her cards. If I could get hel p by today it would be very much appreciated ^^