Answer:
Equation to determine number of albums sold: 12a +200 = 644
Step-by-step explanation:
Given that:
Base rate earned by Floyd = $200
Amount for per album sold = $12
Let,
a be the number of albums sold by Floyd
Amount earned last month = $644
According to given statement;
Total earned = 12a + 200
12a +200 = 644
Hence,
Equation to determine number of albums sold: 12a +200 = 644
-3x+y=5
y=5+3x
Then:
if x=-4; y=5+3(-4)=5-12=-7 This is a possible solution .
if x=3; y=5+3(3)=5+9=14 This is other possible solution.
if x=2; y=5+3(2)=5+6=11, it´s not solution.
if x=1; y=5+3(1)=5+3=8; this is other possible solution.
C. (2,-1)
If the decimal # is 5 and above, you increase the whole number up one.
In this case, the decimal # is below 5. So in this case, the answer to your question is...
1
Simple!