Lou had 6.5 gallons in the 16 gallon tank on the coldest day of the year Lou filled her tank with gas that cost her 3.90 per gallon how much did Lou spend on gas?

In factoring by grouping, what would you have for step 3 for the following? step 1: x^3 +5x^2 +4x+20 step 2: x^2 (x+5)+4(x+5) step 3: ?

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

The american academy of pediatrics wants to conduct a survey of recently graduated family practitioners to assess why they did not choose pediatrics for their specialization. provide a definition of the population, suggest a sampling frame, and indicate the appropriate sampling unit.