Need help ASAP please it’s due tomorrow

Emma will roll two number cubes labeled 1 through 6. she will record the sum of the two numbers after each roll. she will roll the two cubes 540 times. how many times should emma expect the sum to equal 5?

Look at this pattern ; 1,4,9, number 10000 belongs in this pattern . what’s the place of this number?

The difference between two numbers is one. three times the larger number minus two times the smaller number is 9. what are the two numbers