The ratio of boys to girls is exactly the same in classes 701 and 702. Class 701 has 12 boys and 18 girls. If Class 702 has 10 boys, how many girls must there be in this class?

When you answer this can you explain

If g^-1(x) is the inverse of g (x) which statement must be true

The students at jefferson middle school are raising money for a charity by selling t-shirts and hats. the number of t-shirts sold was 3 times the number of hats. the profit was $5 for each t-shirt sold and $2.50 for each hat sold. the students raised $840 for the charity. they used the system below to analyze their success and found the solution to be (144, 48). 5x+2.50y=840 x=3y how much did they earn from t-shirt sales?