Respuesta :

mathstudent55

Answer:

1. True; 10, 20, 50, 100, 1210 are all divisible by 10.

2. True; prime numbers: 2, 3, 5, 7, 11, 13. Only 2 is even.

3. False; 144 is a perfect square and has 15 factors.

4. False; x = 9 in this equation, so x = 4 is false.