Marking brainliest I’m getting a belly piercing soon and this guy asked this question but I’m not sure what he means? Someone help

In the triangle abc< angle c is a right angle. find the value of the trig function indicated. find tan a if a =12, b=5 a. 13/12 b. 12/13 c. 5/12 d.12/5

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.

The parabola y = x² - 4 opens: a.) up b.) down c.) right d.) left