Explica cómo se debe dividir cada unidad para ubicar en la misma recta numérica los números racionales Ayuda porfa

The graph shown below expresses a radical function that can be written in the form f(x)=a(x+k)1/n+c what does the graph tell you about the value of n in this function

The table above shows approximate conversions from gallons to liters. what is the value of x?

Offering 30 if a plus b plus c equals 68 and ab plus bc plus ca equals 1121, where a, b, and c are all prime numbers, find the value of abc. the answer is 1978 but i need an explanation on how to get that.