Set up a proportion:

The numerator represents fluid ounces of milk, and the denominator represents milligrams of calcium.
Simplify the first fraction to make multiplication easier:


Cross multiply the fractions:


Divide both sides by 135 to get x by itself:

2.1 fluid ounces of milk provide 72.5 milligrams of calcium.
Answer:
option 4 and 6
Step-by-step explanation:
Answer:
okay depending on the question
The numbers are irrational, so I can't write them exactly with digits.
When rounded to the nearest ten-thousandth, they are
31.3746
and
-6.3746 .