Astore owner spends 7x + 13 dollars on two orders of boxes of light bulbs, including shipping. if the store owner spent a total of $90 on both orders, how much does a box of light bulbs cost in dollars?

Your best friend told you that last week scientists disco y that las vegas is responsible for abrupt climate changes. which do you think is best way to research that recent discovery? an encyclopedia usgs internet site a book in the library your best friend’s parents for your ! ❤️