Cesium-137 has a half life of approximately 30 years. How much of a 40 g sample would be left after 90 years?

A. 14.33 g

B. 6.31 g

C. 32.49 g

D. 5 g

E. 26.67 g

F(x) = (x^2 + 3x − 4) and g (x) = (x+4) find f/g and state the domain.

Plz determine whether the polynomial is a difference of squares and if it is, factor it. y2 – 196 is a difference of squares: (y + 14)2 is a difference of squares: (y – 14)2 is a difference of squares: (y + 14)(y – 14) is not a difference of squares

List the sides of δrst in ascending order (shortest to longest) if: m∠r =x+28°, m∠s = 2x+16°, and m∠t = x+12