hello i need good and well ordered answers for this 2 question please correct and organzied answers

i 8x12(mod28). ii. 7x1(mod9). b) Hashing Function is used to assign a memory location for the records in the computer (For example to assign a memory location for the student ID number). The function used to assign locations is given by: h(k)=kmodm When m=50 memory locations, find the location assigned to the following number: 37149212107405723