Kim solved 3x +4=7 and john solved 3x +4=<7. john thinks they should get the same solution set state if john is correct and why

Is a currency whose value is tied to another currency, meaning that the exchange is fixed

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?

When solving this problem: 3025/5.5 = a/90.75 you get 49912.5 which would be the length of one of the sides of a square when the area is only 90.75 inches. is that answer correct, why, and how is it possible?