Can someone be my friend :) Even best friend :)

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

Aword processing program requires a 7- digit registration code made up of the digits 1,2,4,5,6,7 and 9 each number has to be used and no number can be used mor than once how many codes are possible

God's gym charges a sign-up fee of $100 plus $30 per month. write an expression to represent how much someone would pay for a membership.