Ooooppppppp— homie not gettin nun at home I see
The width would be 90.
900/100=90
Since it give you the over all square yards, you take that number and divide it by what ever the number would be and that gives you the answer.
|-3|=3 right?
Then it is
3*-6=-18
Total people in the cafeteria = 7 + 48 + 45 = 100
There are 45 boys.
The probability would be the number of boys over the total number of people:
45/100, which simplifies to 9/20