Answer:
7 blue marbles
Step-by-step explanation:
because 3:7 equals red:blue so blue = 7
The answer the 3,
First you have to apply the exponent rule which is 1 - 3• 1/g
Then you multiply the fractions - 1•3/g
Then multiply the numbers 1 and 3, which is 3, so there you have it 3/g, or 3, they’re the same thing.
It is y = 3x + 2, which means the y-intercept is 2. :)