The coast of laptop computer in 2007 was 1250$ in 2009 the price was decreased 1100.find the percent decrease in the price of the laptop from 2007 to 2009

What is the vertical asymptotes of the function f(x)=x-2/x*2-3x-4

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).

Consider the function f(x)=-5x+3 what is f(-2)