Luther evaluated 2 with the exponent of 3 as 9 and wade evaluated 3 with the exponent of 2 as 9. are both students correct?

If i have a 24 in loaf of bread and i cut it into two pieces one 9 in how long was the other

For f(x)=2x+3 and g(x)=x^2- 8 find (f+g) (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.