Tan x tan x/2 =

A. sec x-1
B. sec x+1
C. csc x-1

The random variable x represents the number of phone calls an author receives in a day, and it has a poisson distribution with a mean of 8.7 calls. what are the possible values of x

An 18% discount on a watch saved a shopper $72. find the price of the watch before the discount

During a wright loss challenge your friend goes from 125 pounds to 100 pounds.what was the percent weight loss