By the given condition we find that to calculate the cost of the notebooks and newspaper is impossible, from the given condition we get only no solutions.
Let the cost of the notebooks and newspaper in Liam's bookstore be x and y respectively.
According to the given question.
Liam's bookstore sold total 40notesbooks and 20 newspater for $130.
⇒ 40x + 20y = 130
⇒ 20(2x + y) = 130
⇒ 2x + y = 6.5 ...(i)
And the next day,
The bookstore sold 8 notebooks and 4 newspapers for $130.
⇒ 8x + 4y = 28
⇒ 4(2x + y ) = 28
⇒ 2x + y = 7 ...(ii)
Since, if we see the two equations i and ii we find that the given conditions provide no solutions.
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