Does anyone know how to answer this ?

Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers

In priyas math class there are 10 boys and 15 girls. what is the ratio of boys to girls in priyas math class? express your answer as a decimal

Nine people are going to share a 128-ounces bottle of soda. how many ounces will each person get drink? choose the correct equation and answer for this situation