7. Sonia's class has 24 girls and 8 boys. Her school has a total
enrollment of 860 students. If the school has the same ratio of
airls to boys as Sonia's class, how many girls are in the school?

Ratio of girls to total students: 24 / 32

Proportion: 24 / 32 = x / 860

Solving proportion for x:

32x = 20640

x = 645 girls

There are 645 girls in the school.

Hope this helps!! :)

the mistake in the pattern is that :

b. the decimal point was moved one too many place values each time

the correct pattern could be made by :

b. moving the decimal point to the right the same numbers of place values as the exponents