In Number Theory solve the following 443x 337 mod 100 300x 2

In Number Theory:

solve the following:

443x (337 mod 100):

300x (210 mod 170):

Solution

443x (337 mod 100);

443x 37

x 37/443 .0835

300x (210 mod 170):

300x 40

x 40/300 .134