Unit 5 Test Review

A penguin is standing 3 feet above sea level and then dives down 10 feet. What is its depth?

• 13 feet

• -13 feet

• -7 feet

• -10 feet

A dolphin is swimming 3 feet below sea level and then jumps up 10 feet. What is its height at the top of the jump?

• -13 feet

• 7 feet

• -7 feet

• 10 feet

A sea turtle is swimming 3 feet below sea level and then dives down 10 feet. What is its depth?

• -13 feet

• 13 feet

• 7 feet

• -7 feet

An eagle is flying 10 feet above sea level and then dives down to 3 feet above sea level. What was its change in altitude?

• -13 feet

• 13 feet

• -7 feet

• 7 feet

A pelican is flying 10 feet above sea level and then dives down reaching 3 feet below sea level. What was its change in altitude?

• -13 feet

• 13 feet

• 7 feet

• -7 feet

Nathan sees an aquarium that can hold up to 10 gallons of water. When it is active, a drain empties water from the tank at a constant rate. When Nathan first sees the tank, it contains 8 gallons of water. Three minutes later, the tank contains 5 gallons of water.

At what rate is the amount of water in the aquarium draining? Use a signed number, and include the unit of measurement in your answer.

• -8 gallons per minute

• +5 gallons per minute

• -1 gallon per minute

• +1 gallon per minute

Nathan sees an aquarium that can hold up to 10 gallons of water. When it is active, a drain empties water from the tank at a constant rate. When Nathan first sees the tank, it contains 8 gallons of water. Three minutes later, the tank contains 5 gallons of water.

How many more minutes will it take for the aquarium to drain completely?

• 8 minutes

• 5 minutes

• 3 minutes

• 1 minute

Nathan sees an aquarium that can hold up to 10 gallons of water. When it is active, a drain empties water from the tank at a constant rate. When Nathan first sees the tank, it contains 8 gallons of water. Three minutes later, the tank contains 5 gallons of water.

How many minutes before Nathan saw the aquarium was the aquarium completely full?

• 10 minutes

• 8 minutes

• 5 minutes

• 2 minutes

Tony Stark has $80,000 in his bank account. He buys a new car for $92,300.

How much money does Tony have now? Use a signed number.

• +$172,300

• +$80,000

• +$12,300

• -$12,300

Tony Stark has $80,000 in his bank account. He buys a new car for $92,300.

How much money would Tony have to earn to get out of debt?

• +$172,300

• +$80,000

• +$12,300

• -$12,300