What are the values of x in this equation? `x^(2/5) + x^(1/5) + 1 = 3`

Which of those sequences is a geometric sequence

5× 1/2 = ? a) more than 5 because you are multiplying by a whole number b) 5/10 because you multiply the numerator and denominator by 5 c) less than 5 because you are multiplying by a number that is more than 1 d) less than 5 because you are multiplying by a number that is less than 1

Ineed i been stuck on this question since yesterday