Help and i will give brainiest if you answer them all if random will report and yes i know i giving a lot of points but ive tried and just want to be done

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

The number of nails of a given length is normally distributed with a mean length of 5.00 in, and a standard deviation of 0.03 in. find the number of nails in a bag of 120 that are less than 4.94 in. long.

He that is measured at 220° is a reflex angle. the opposite angle is obtuse. find the measure of obtuse .