What is the value of x?

The ratio of rock songs to dance songs on jonathan’s mp3 player is 5: 6. the total number of rock and dance songs jonathan has is between 101 120. how many rock songs does he have?

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

1) you deposit $2,500 in an account that earns 4% simple interest. how much do you earn in eight years?