Answer:

Step-by-step explanation:
we have:

we also have:

from (1)(2) => proven
Answer:
Its closer to 10
Step-by-step explanation:
Answer:
5400
Step-by-step explanation:
6x900 =5400 this is the correct answer
A multiplicative inverse of an integer a is an integer x such that the product ax is congruent to 1 with respect to the modulus m.
1. 
Check:
The multiplicative inverse of 5 in
is 9.
2. 
Check:
The multiplicative inverse of 5 in
is 5.
3. 
Check:
The multiplicative inverse of 5 in
is 8.