Answer:
14
Step-by-step explanation:
4 teachers + 9 people + Jim (who is 1 person) = 14
Both teachers and children are people. If there were 4 teachers and 9 children already at the table, sitting down, when Jim arrived, then that would be 13 people at the table before he sit and 14 people after he sits.
Answer: 30 is the least common multiple of 6 and 10.
30/6= 5
30/10= 3.
the answer is 3/5 your welcome