Answer:
All false.
Step-by-step explanation:
The ratio is 3:4.
For every 3 girls, there are 4 boys.
If a class has 7 people, 3 are girls and 4 are boys.
Hence the fraction of boys is 4/7 and girls are 3/7.
Therefore, a and b are False.
The number of boys in the class cannot be 6. If the number of boys is 6, then the number of girls must be 4.5 to maintain the 3:4 ratio, but there cannot be half a girl. So, c is also false. d) the number of pupils in the class is 12. To maintain a 3:4 ratio, the number of pupils in the class must be in multiples of 7. Hence, d is also false.
Answer:

Step-by-step explanation:

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Answer:
I am confused what is the question?
A slope is....
<span>a surface of which one end or side is at a higher level than another; a rising or falling surface.</span>
Answer:
250+23x=y
Step-by-step explanation:
x represents the amounts of jerseys the team buys. Once that amount is known they will multiply. 
y is the amount of money spent, or the sum.