WILL MARK BRAINLIEST FOR A REAL ANSWER! You find out that you get a 20% off on your favorite sweater, and you also get an additional 30% off. Does the store apply the discounts all at once or apply them sequentially? Why would it make a difference?

Hi my sisters and brothers can tell me the answer because i don’t understand the question

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).

Satchi found a used bookstore that sells pre-owned dvds and cds. dvds cost $9 each, and cds cost $7 each. satchi can spend no more than $45.