Answer:
As x increases, y decreases and then increases.
Step-by-step explanation:
You can see in the graph as the x values are moving to the right (increasing), the y values go down first (decreasing), then go up (increasing). So basically you can see that as x increases, y decreases first, then starts to increase.
Answer:

Explanation:
All the other expressions can be factorized. Let's see why:
1) 
This is the sum of the cubes, and this can be factorized as follows:

In this case, a=m and b=1, so we can factorize as

2) 
This is the difference between two cubes, and this can be factorized as follows:

In this case, a=m and b=1, so we can factorize as

3) 
This is the difference between two square numbers, and it can be factorized as follows

In this case, a=m and b=1, so we can factorize as

Answer: 13: $3.95
14: 12 months 2 years = 24 months. so 479.76÷24 $20 each month
15: 27.4 meters to go around the flower bed
16: B = 114.3 - 104.76 = $9.54
17: $214.30
18: 2.1
19: 3.5
Step-by-step explanation:
Answer:
nice.
Step-by-step explanation: