4 hours? i may be wrong
i did - 60 * 15
seems about right, since 50% would be 7.5 hours?
Answer:
0.25
Step-by-step explanation:
we have

we know that

substitute

Remember that

so

Answer:
ion know
Step-by-step explanation:
Answer:
10
Step-by-step explanation:
Look at where the one gallon gas is, it's point comes to ten. :)
Any answer less than one would work, soothe answers are A and D