Please help i’ll mark brainliest just do two or three of the problems

Write the expression as a constant , a single trigonometric function, or a power of a trigonometric function. sin x cos x/ tan x

11. a particular type of cell doubles in number every hour. which function can be used to find the number of cells present at the end of h hours if there are initially 4 of these cells? a. n = 4 ()" b. n = 4(2)" c. n = 4 + (2)" din = 4 +"

If the cost to mail a package is an initial $5 and $0.28 for every pound the total cost to mail a package was $11.27, how much did the package weigh?