What is the expanded form of 0.15(8l+5m)

Ifigured out the question and i dont know what to put here

Currently, the largest cruise ship has a tonnage of 225,282 gross tons (gt). which of the following is a reasonable estimate for the tonnage of this cruise ship? a. 2 × 10^5 gt b. 2 × 10^6 gt c. 2 × 10^-5 gt d. 2 × 10^-6 gt

Rewrite the expression in z to the n power. the expression i was given is: 1 over z to the negative 1 half power.