What is 5.336 rounded to the nearest tenth

In simplified exponential notation, the expression a^2•a^-3•a 1/a 0

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

Witch sequence shows a pattern where each term is 1.5 times the previous term