For brainiest:):):):):):):):):):)

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

Astock has a 25% probability of increasing by $10 and a 75% probability of decreasing by $5. what is the stocks expected increase or decrease?

D. in a discrete probability distribution, the sum of the probabilities for the discrete variables will be > 1. true or false