Solução
Solução
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A number x increased by 7 is at most 26the difference of a number and 15 is less than or equal to 38A mountain on a tropical island experiences changes in its height due to volcanic activity. Its current height is 5,181 meters, which is 10% taller than it was when the mountain was last measured. How tall was it then?Phil is Tom's father. Phil is 35 years old. Three years ago, Phil was four times as old as his son then.How old is Tom now?Eight more than the quotient of a number and 4 is 6