Can you please solve #37 in Section 4 of Test 8?

Thank you!

Sure! The question says to use the table for this one. The table tells you:

- 5 minutes after injection, there are 152 micrograms of penicillin per milliliter of blood.
- 10 minutes after injection, there are 118 micrograms of penicillin per milliliter of blood.

The question asks you to compare the amount of penicillin in 10 milliliters of blood after 5 minutes () to the amount of penicillin in 8 milliliters of blood after 10 minutes ().

Because the question asks how many more micrograms there are in the first sample than in the second, subtract: