Melanie is playing a card game called The Integer Game. In this game, players are dealt 5 cards. The goal of the game is to have the sum of the cards in your hand total as close to 0 as possible. Each round, the player picks up a new card. The player must then discard a card that will help achieve the goal of a sum closest to 0. Melanie has the the following cards in her hand:

If Melanie picks up a 9 as her next card, which card should she discard to achieve the goal of a sum closest to 0?
Jayden’s family drives 325 miles from their home to their grandparents’ house. On the drive home, after 150 miles, they stop at a rest stop. The number line models this situation.
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If Jayden’s family travels the same distance to and from their grandparent’s house, how many more miles do they have left to drive home?
Rashad received a gift card worth $25 for his birthday. He bought two toys, the first costs $8 and the second costs $7. Which expression below could be used to determine how much money is left on the gift card?
What is the value of
What is the value of −5.4 − 11?
Express the following fraction as a decimal.
What is the value of 4.1 x (− 3) ?
What is the value of
Evaluate
Evaluate 15 ÷ 5 − (5 − 8 ÷ 2) × 3.
Jesse and Miya are playing the Integer Card Game. The cards in Jesse’s hand are shown below:

a. What is the total score of Jesse’s hand? Support your answer by drawing and labeling a number line.
b. The cards below represent Miya's hand when the cards were first dealt. Her hand already had a sum of zero.

What's the value of her "?" card?
Prove that your answer is correct.