How many hours is 8am to 430pm with 1 hour lunch?

Suppose the elasticity of demand for cereal is 1. If cereal increases in price by 25 percent how much will the quantity demanded decrease by 25 percent 1 percent 12.5 percent There is not? How does exercise generate H plus? What is 314 times 78? How do you find the perimeter two dimensional figure? How much does a 5'4 or 5'5 boy weigh? How tall is 6 feet and 4 inches? What must be added to 72 to make 100? What is 43.0129 rounded to the nearest hundredth? Is x equals 3 a linear equation? How is 5 divided by 4 a rational number? How many corners does a pyramid? What is nine hundred four ten-thousandths as a decimal? What address is sort code 040127? Analogy for careful? What are the first ten multiples? How long is 1 billion hours? Why is there 1000 grams in 1 kilogram? How do you convert 27000 per year into an hourly wage? How many moles of Mg3N2 would be produced when 180.0 g of Mg reacts with 85.0 g of N2? What has four sides and they are the same length and has no right angles?