Acd usually sells for $12. if the city is 10% off, sale tax is 8% what is the total price of this cd including tax

Find the difference (8ab+a+2) - (3ab+6)

What is the domain of the step function f(x)=[2x]-1?

There are a total sales of 2,000 dollars on monday on tuesday sales dropped 10% on wednesday sales dropped another 20% compared with tuesday from wednesday to thursday sales increases by an equal amount to 25% of monday total sales what is the net change in dollars on total sales from monday to tuesday