What is A two digit composite number divisible by both 5 and 9

What is the value of the whole number N, if: Nofof of of 100?

Is the number 811 prime?

Where did the number 11480 come from?

If a number is not divisible by 8, can it be divisible by 16 ?

Explain why each of these numbers is a prime number: 2, 3, 29, 97.

In the game of poker played with an ordinary deck of 52 cards various five-card holdings are given special names. The name "three of a kind" is reserved for a holding that meets the following rule: Three cards of the same denomination and two other cards of different denominations. The number of distinct "three of a kind" that can be drawn from a 52-card deck can be calculated with the following product expression: 030² Explain what each of the factors in the expression represents in terms of selections from the deck of cards. Follow the examples given in slides 8-10 of the lecture Section 9.5 Combinations.pdf.

5) Find 9 sequential composite numbers.

How do I make a subtraction integer into an addition integer and get an answer?