A) If $a\equiv 62\pmod{99}$ and $b\equiv 75\pmod{99}$, then for what integer $n$ in the set $\{1000,1001,1002,\ldots,1097,1098\}$ is it true that
I have edited so that it can be read. Next time edit it yourself. Melody.
(It still doesn't make sense though)
B) The remainders when three positive integers are divided by 5 are 1, 2, and 3. Find the remainder when their product is divided by 5.
C) What is the residue modulo of the sum of the modulo inverses of the first positive integers?
Express your answer as an integer from to , inclusive.
D) Solve the congruence , as a residue modulo 43. (Give an answer between 0 and 42.)