Answer:
negative
positive
negative
zero
positive
Step-by-step explanation:
Situation 1: A football team's first play resulted in a loss of 15 yards.
negative
Situation 2: A store marks up the price of a calculator $5.20.
positive
Situation 3: Nina withdrew $50 from her bank account.
negative
Situation 4: A porpoise is swimming at sea level.
zero
Situation 5: Kylie scored 2 goals in yesterday's soccer game.
positive

<em>Hope it helps and is useful :)</em>
The answer to your equation is z = 7
I don’t know sorry I’m on the same one and can’t find it out
Answer:
640
Step-by-step explanation:
you just divide