5. which numbers below are composite?
13
15
17
27

15 and 27 are composite

Step-by-step explanation:

prime numbers only factor into 1(x) and x(1)

13 = 1(13), 13(1)

15 = 1(15), 3(5), 5(3), 15(1)

17 = 1(17), 17(1)

27 = 1(27), 3(9), 9(3), 27(1)

hope this helps

entering that problem on the tube might get you an answer

hey! so 1 (25) out of 4 (100) is 25 so your answer is 25%. it's like quarters!