Is negative 6 a rational number

What is the prime factorization of 23 ?me with this question

It took alice 5 5/6 hours to drive to her grandparents' house for . on the way home, she ran into traffic and it took her 7 3/8 hours. how much longer did the return trip take? write your answer as a proper fraction or mixed number in simplest form. the trip home took __hours longer. ?

Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers