: If k is Kendra’s present age, write an expression for her age eight years ago. A. k + 8 B. 8 - k C. 8 + k D. k - 8

Which organism develops breathing organism develops breathing organs from pharyngeal arches? shark, spider, sea star, sea horse

How many grams of sodium chloride are in 250ml of a 2.5m naci solution

The image compares the arrangement of electrons in two different neutral atoms. a figure labeled atom q has a shaded sphere at the center of three concentric circles. the innermost circle has two black spheres. the middle circle has six black spheres. to the left of this figure is another figure labeled atom p. atom p has a shaded sphere at the center of three concentric circles. the innermost circle has two black spheres. the middle circle has seven black spheres. which of the following best explains the position of the two atoms in the periodic table?