96^2+b^2=100^2

what is b?

International calls require the use of a country code. many country codes a 3-digit numbers. country codes do not begin with a 0 or 1. there are no restrictions on the second and third digits. how many different 3-digit country codes are possible?

W-16=-12 solve each one step equation plz

1.based of the diagrams what is the the value of x? 2.how would you verify your answer for x