Answer:
0.9375 = 93.75% probability that at least one of the four children is a girl.
Step-by-step explanation:
A probability is the number of desired outcomes divided by the number of total outcomes.
We have the following sample space
In which b means boy, g means girl
b - b - b - b
b - b - b - g
b - b - g - b
b - b - g - g
b - g - b - b
b - g - b - g
b - g - g - b
b - g - g - g
g - b - b - b
g - b - b - g
g - b - g - b
g - b - g - g
g - g - b - b
g - g - b - g
g - g - g - b
g - g - g - g
Total outcomes
There are 16 total outcomes(size of the sample space)
Desired outcomes
Of these outcomes, only 1(b - b - b - b) there is not a girl.
So the number of desired outcomes is 15.
Probability:

0.9375 = 93.75% probability that at least one of the four children is a girl.
An example of the ratio 4:1 could be, in a school for every 4 girls there is 1 boy. Or something similar:)
It would be Answer A) x>6
27j-6=14j+7
Subtract 14j from both sides
27j-6-14j=14j+7-14j
13j-6=7
Add 6 to both sides
13j-6+6=7+6
13j=13
Divide both sides by 13
13j/13=13/13
j=1
I hope that's help !
The company spends $600 on a new computer and printer before beginning the project