Answer:
3).

4).
If it was by 10, k = 3 by 10
k = 30
5).

Answer:

Step-by-step explanation:
Let's try plugging in some negative numbers. Let's do x=-1. 5+-1=4. So we know that if we put in a negative number for x, then n will be positive. But what if we do a number greater than -5, because 5+-5=0. So let's try x=-6. So 5+(-6)=-1. Hmm. So here it is. We know that any number under -5 will be positive and any number above -5 will be negative.
Answer: 225
Step-by-step explanation:
225x0.04 is 9
Answer:
The choice D.
Step-by-step explanation:
