Can someone help me with this assignment in Mathematics in Modern World? The topic is Arithmetic Modulo. Thank you in advance.

\fI. Verify if the following congruence are true. 1.) 4 19 (mod 3) 2.) 3 20 (mod 3) 3.) 9 33 (mod 4) 4.) 5 20 (mod 4) 5.) 11 30 (mod 5)ASSIGNMENT: II. Solve the least residue of the following. 1.) 50 (mod 3) 2.) 50 (mod 4) 3.) 55 (mod 7) 4.) 34 (mod 4) 5.) 75 (mod 5)