Find the digit that makes 3,71_divisible by 9

Question

A. 3
B. 7***
C. 1
D. 5

List all the factors of the number 30
A. 1,2,3,5,6,10,15,30
B. 2,3,4.10,20.30.40
C. 1,2,4,5,10,15,30***
D. 1,2,4,5,8,10,20,40

What is the prime factorization of 540?
A. 2 x 2 x 3 x 3 x 3 x 7***
B. 3 x 3 x 12 x 5
C. 2 x 2 x 3 x 3 x 3 x 5
D. 2 x 2 x 3 x 3 x 5

Find the GCF of the numbers 55 and 44
A.-11
B. 11***
C. 220
D. 55

*** Means that is what i think the answer is.

Answer 1

Can somebody help me i really need help

Answer 2

Well, for the first one I think is 7. Which means the first your answer is correct. Still checking the rest.

Answer 3

Thank you

Answer 4

For the second one -- 1, 2, 3, 5, 6, 10, 15, 30. Which means the answer would be A. Not B. So your answer was wrong for #2

Answer 5

Sorry, I meant not C

Answer 6

For #3, the prime factorization of 540 would be 2 x 2 x 3 x 3 x 3 x 5. Not the one you chose. So you answer was wrong for #3 and the correct answer would be C.

Answer 7

For the last one, the Greatest Common Factor of 55 and 44 would be 11. Therefor, you answer was correct and the correct answer would be B.

Answer 8

Thank you sooooo much you don't know how much you just helped me

Answer 9

To be honest, I really don't. But I am just happy I helped anyways!