28.5g of iron is added to a graduated cylinder containing 45.50ml of water. the water level rises to the 49.10ml mark, from this information calculate the density of iron.

What is the product? (x2+3y+7) [yy+1)

Find the amount in a continuously compounded account for the given condition. principal: $1000, annual interest rate: 4.8%, time: 2 yr

Identify all the cases where non-probability sampling is used when attempting to study the characteristics of a large city. studies on every subject in the population divide a population in groups and obtain a sample studies with a limited amount of time demonstrate existing traits in a population studies with the nth person selected