The Girls:Boys ratio of 7:2 means that there are 7 girls for every boy.
As there are 250 more girls this relates to the 7-2 part of the ratio.
We can then divide 250 by 5 and multiply by 2 to get the number of boys as 100 boys
percent row: 120% 0.03% 15%
Decimal row: 1.2 0.0003 0.15
Fraction row: 12/ 10 3/10000 3/20
Pi is a real number because any number can be expressed in the form of (a+ib) where a is the real part and b is an imaginary part. its not a rational number because it cant be written as a fraction
That is the correct graph that represents
{3y≥x−9 3x+y>−3
hope i helped =D