Astore's cost for a stereo was $27. the markup was 75%. a customer purchased it on sale for 40% off. what was the purchased price of the stereo?

If there is no real number solution to the quadratic equation x^2+2x+c=0 what is a possible value of c? 1 -2 0 3

According to modern science, earth is about 4.5 billion years old and written human history extends back about 10,000 years. suppose the entire history of earth is represented with a 10-meter-long timeline, with the birth of earth on one end and today at the other end.

How do businesses a country's economy? a. by investing in goods and services b. by increasing the unemployment rate c. by making profits