2) Carbon-14 is a radioactive isotope often used in dating archaeological and geological artifacts. If Carbon-14 has a half-life of approximately 6,000 years and you have a 100mg sample then how much of it will be remaining in 18,000 years?

Which statement best describes a square? a. a special rectangle that has four right angles b. a special trapezoid that has four sides of equal length c. a special rectangle that has four sides of equal length d. a special trapezoid that has four right angles

Find an equation of the line perpendicular to the graph of 28x-7y=9 that passes through the point at (4,1)

Express -5 2/5 as an improper fraction.