Answer:
solution: ( 3 , 6 )


Step-by-step explanation:


make y the subject in equation 2:



insert this in equation 1:






solve for y:



So,
1st year: 3
2nd year: 4(first year), which is 12
3rd year: 6(first year), which is 18
The sum of the 1st, 2nd, and 3rd years is 3 + 12 + 18 = 33
Now, multiply 33 by the price at which Mr. Jackson sold each computer ($185).
We get $6105. Mr. Jackson's gross profit was $6105.
Answer:
and 
Step-by-step explanation:
we have

we know that
Compound inequality can be divided into two inequalities
so

rewrite

and

therefore
An equivalent form of the compound inequality is
and 
Answer:
32%
Step-by-step explanation: