Answer:
1. 15
2. 27
3. 4
4. 72
5. 2
6. 9
7. 1
Step-by-step explanation:
The additive identity property states that for every number a, you have

You're showing this property when you write

Answer:
Step-by-step explanation:
X^2+7x+63=63
<=> x^2+7x=63-63=0
<=> X(x+7)=0
<=> x1=0
X2=-7
It would be to little because it would only be 30 cents
Answer:
the greatest common factor would be 14 . Hope this helped
Step-by-step explanation: