Answer:
3x^2 + 7x - 18
Step-by-step explanation:
you have the ratio of natural:synthetic so;
3:4
3+4=7
357/7=51
3*51:4°51
153:204
therefore, it'd be 204 litres of synthetic oil!!
i hope this helps you!!
Answer:
Option C 
Step-by-step explanation:
Let
x ----> the cost of the concert ticket
we know that
The total cost to be no more than $4 Above $80
so

Solve for x

The total cost to be no more than $4 below $80
so

Solve for x


therefore
The inequality that represent this problem is

<u><em>Verify</em></u>
<em>First solution (positive case</em>)


Solve for x
----> is ok
<em>Second solution (negative case)</em>

Multiply by -1 both sides


Solve for x

---> is ok
Remember that
is equivalent to 
Because is a absolute value
Answer:
D. An inequality models the situation better, because y could be a range of values extending into the negative direction on the number line.
Step-by-step explanation: