A submarine 30m below the surface of the ocean rises 16m. what depth is it at now?

The longer leg of a 30° 60° 90° triangle is 16 times square root of three how long is a shorter leg

What is the value of x in the this question ?

Alcoa was $10.02 a share yesterday. today it is at $9.75 a share. if you own 50 shares, did ou have capital gain or loss ? how much of a gain or loss did you have ? express the capital gain/loss as a percent of the original price