Alfonso mails a package that weighs 9 lb. how many oz is this package

Asap! i'm not good math and i'm lost.

What is the value of x? assume that the line is tangent to the circle.

Twelve different video games showing substance use were observed and the duration times of game play (in seconds) are listed below. the design of the study justifies the assumption that the sample can be treated as a simple random sample. use the data to construct a 99% confidence interval estimate of μ, the mean duration of game play. 4028 4316 4816 4650 4036 5010 4833 4331 4307