Step-by-step explanation:

I think. 10 but not really sure
maybe 1/5 (409) ::(880) 1+2
I don't see how this is math related but let me ask why do you want to? Best friends don't normally leave when things get tough. I mean I do understand. And I will tell you my opinion if you truly want it as well. Jw.
Answer:
#1 Haley is correct and Lacey is incorrect
#2 Kenji is incorrect.
Step-by-step explanation:
#1. x^3 (x^2) = x^5 but this same law doesn't apply to addition of numbers with exponents.
#2 The law of exponents doesn't apply to numbers with different bases that are not multiples of each other such as 3 and 4, so Kenji's simplification is not correct.