Matthew wanted a laptop for his birthday. He found one on sale for 15% off the original price.
If the original price was $1,200, how much did
the laptop cost before taxes were applied?

125 tickets were sold for the jazz band concert for a total of $1,022. students tickets cost $6 each, and general admission tickets cost $10 each. how many of each kind of tickets were sold?

How do you use the elimination method for this question? explain, because i really want to understand!

Each month, a shopkeeper spends 5x + 14 dollars on rent and electricity. if he spends 3x−5 dollars on rent, how much does he spend on electricity? for which value(s) of x is the amount the shopkeeper spends on electricity less than $100? explain how you found the value(s).