For each of the prime numbers less than 30, Wallace writes down all the number's positive factors. What is the sum of all the numbers Wallace writes down?

If the sum of three prime numbers is 31 and their
product is 1001, what is the largest of the three prime
numbers?

Please just don’t guess I have no clue where to start?!!will give if you explain rlly well

Ok, so this question is confusing to me as well, and I have this same question on school. So when I get the answer, I will try to explain it to you the best I can. :) God Bless. Stay :D

Step-by-step explanation:

walter needs to make at least 5 more cookies but no more than 40. 5 ≤ x ≤ 40

step-by-step explanation:

20 ≤ x + 15 ≤ 55

subtract 15 from all parts

20-15 ≤ x + 15-15 ≤ 55-15

5 ≤ x ≤ 40

this means how many more cookies he has to make

walter needs to make at least 5 more cookies, but no more than 40 cookies; 5 ≤ x ≤ 40