65:100 because there are 65 girls and then 65 girls + 35 boys = 100 total students
Answer:

Step-by-step explanation:
In this question, one is asked to multiply a fraction by a whole number, first model the question.

In a situation like this, one multiplies the whole number by the numerator (number) over the fraction.

Simplify,

A common error that people make is that they will multiply both the numerator and denominator by the whole number, this is the same as multiplying the answer by (1), thus it is incorrect.
Answer:
I have the answer to part A. just do 10,000,000* 1.55 and you should get 15,000,000.
Step-by-step explanation:
Not sure what the question is
But 1/4 as a decimal gives us 0.25