PLS HELP ASAP NOW I REALLY NEED HELP ITS PYTHAGOREAN THEOREM

You purchased 8 pounds 10 ounces of candy from a candy shop. you want to split it equally among 3 classrooms at a local school.

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?

The angle of a triangle are given as 6x,(x-3), and (3x+7). find x then find the measures of the angles