Question

Choose all of the true statements.
Responses
A A scuba diver is 30 feet below sea level. The scuba diver must rise 30 feet in order to get back to his boat.A scuba diver is 30 feet below sea level. The scuba diver must rise 30 feet in order to get back to his boat.
B The bank charged $10 to replace a lost debit card, then the card is used to make a $10 purchase. The net effect on the bank account is $0.The bank charged $10 to replace a lost debit card, then the card is used to make a $10 purchase. The net effect on the bank account is $0.
C The temperature rose 15 degrees from sunrise to noon, then dropped 15 degrees by sunset. The net change in temperature from sunrise to sunset is zero degrees.The temperature rose 15 degrees from sunrise to noon, then dropped 15 degrees by sunset. The net change in temperature from sunrise to sunset is zero degrees.
D A football player gained 12 yards on the first play. On the second play, he lost 5 yards and on the third play he lost 7 yards. His net yardage after the three plays is zero.A football player gained 12 yards on the first play. On the second play, he lost 5 yards and on the third play he lost 7 yards. His net yardage after the three plays is zero.

Answer 1

A, C, and D

Reasoning:
- A: True — rising 30 ft gets from -30 ft to 0 ft (sea level).
- B: False — the $10 replacement fee and the $10 purchase are both charges, net −$20.
- C: True — +15 then −15 gives net 0.
- D: True — 12 − 5 − 7 = 0.