Sarah and her friend see a sign for gas at exit 5. The next exit is 70 mi away. If they have one fifth of a tank of gas, should
they get gas at exit 5 or can they wait for the next exit? A - They must get gas at exit 5 or they will run out.
B - They can probably wait to get gas until the next exit.
with each heartbeat,the heart pumps blood throughout our bodies,carrying oxygen to every cell,after delivering oxygen the blood returns to the heart the heart then sends the blood to the lungs to pick up more oxygen.
