Answer:
Step-by-step explanation:
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:
the answer is
9b²-3b
Step-by-step explanation:
9b-3
Answer:
25
Step-by-step explanation:
Answer:
5000
Step-by-step explanation:
<span>The numbers 53, 59, 61, 67, 71, 73, 79, 83, 89 and 97 are prime.</span>