Answer:
-3
Step-by-step explanation:
y=mx+b
It would be 220 rounded to the nearest ten because the number in the ones place does not equal or exceed 5.
So 220 is your answer :)
Answer:
Other root: 

Step-by-step explanation:
If
, then
.
Therefore:





This means that the other root is
since 
Answer: b = -6
Step-by-step explanation: First add 10 to both sides to get -3b=18, then divide by -3 to get b = -6.
Hope this helped!
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Answer: $9,900
Step-by-step explanation:
Convert the percentage into a decimal: 0.15
Multiply 0.15 by 18000
The product is 2700
Multiply 2700 by the 3 years
The product is 8100
Subtract 8100 from 18000
The result is $9,900