Answer:
520
Step-by-step explanation:
This problem is
boys + girls = total
Boys = 442
Girls = 15% of the total
Therefore, substituting in, gives us:
442 + .15t = t, where t is total
Then 442 = .85t and
t = 520
Answer:

You can plug it into a graphing website or calculator to double check
Answer:
1 question : 0.89 I think.
I need help to. Mine is confusing
Answer: one cup of milk contains 300 mg of calcium
Step-by-step explanation:
25% of 1200 is 300