In modular arithmetic, two integers are added and then the sum is divided by a positive integer called the modulus. The result of modular addition is the remainder of that division. For any modulus, n, the set of integers from 0 to n 1 forms a group under modular addition: the inverse of any element a is n a, and 0 is the identity element. This is familiar from the addition of hours on the face of a clock: if the hour hand is on 9 and is advanced 4 hours, it ends up on 1, as shown at the right. This is expressed by saying that 9 + 4 equals 1 "modulo 12" or, in symbols,
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What positive integer is used to divide the sum of two positive integers in modular mathematics?
Ah, so.. the modulus

Because it was designated as the national capital, many structures were built around that time. Even today, some of them still remain which are open to tourists.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): The structures that still remain are open to whom?
Ah, so.. tourists

Miami is partitioned into many different sections, roughly into North, South, West and Downtown. The heart of the city is Downtown Miami and is technically on the eastern side of the city. This area includes Brickell, Virginia Key, Watson Island, and PortMiami. Downtown is South Florida's central business district, and Florida's largest and most influential central business district. Downtown has the largest concentration of international banks in the U.S. along Brickell Avenue. Downtown is home to many major banks, courthouses, financial headquarters, cultural and tourist attractions, schools, parks and a large residential population. East of Downtown, across Biscayne Bay is South Beach. Just northwest of Downtown, is the Civic Center, which is Miami's center for hospitals, research institutes and biotechnology with hospitals such as Jackson Memorial Hospital, Miami VA Hospital, and the University of Miami's Leonard M. Miller School of Medicine.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): Where is South Beach in relation to Downtown?
Ah, so..
East