Which of the following would be classed as an entrepreneurial venture? 

The main function of the lungs is to bring air into contact with blood so that oxygen and carbon dioxide can be exchanged in the alveoli.

Simplify the following expression. If the expression is not a real number, indicate “Not a Real Number”.(164)23

Simplify the following expression. Assume that each variable is positive. 32y5

The tiny air sacs of the lungs that support a network of capillaries from pulmonary blood vessels are the:

Franchising is an entrepreneurial alliance between a franchisor (an innovator who has created at least one successful store and wants to grow) and a franchisee (a partner who manages a new store of the same type in a new location).

The formation of calculi in the gallbladder is

Simplify the following expression. Assume that each variable is positive. 27×4

Multiply and simplify the following radical expressions.3(15−5)

Evaluate the radical expression. Express your answer as an integer, simplified fraction, or a decimal rounded to two decimal places. If the expression does not represent a real number, indicate “Not a Real Number”.−10003