The graph of an equation with a negative discriminant always has which characteristic? OO
no x-intercept
no y-intercept
no maximum
no minimum

If 10 men take 18 days to mow 60 acres of grass, how long will 15 men take to mow 80 acres?

Polygon hh is a scaled copy of polygon gg using a scale factor of 1/4. polygon h's area is what fraction of polygon g's area?

Sanya noticed that the temperature was falling at a steady rate of 1.4 degrees every hour from the time that she first checked her outdoor thermometer. by 6 a.m., the temperature had fallen 21 degrees. which expression can you use to find how many hours earlier she had first checked the thermometer?