currently rahel and her mother are 14 and 40 years old respectly in how many years time will the mother be twice as old as her daughter ?​

Determine whether the set of whole numbers is closed under addition. explain why the set is or is not closed. give an example.

What is the axis of symmetry of the function f(x)=-(x+ 9)(x-21)

The volume, v, of a rectangular prism is determined using the formula, where / is the length, w is the width, and his theheight of the prism. carltren solves for w and writes the equivalent equation w=using this formula, what is the width of a rectangular prism that has a volume of 138.24 cubic inches, a height of 9.6 inches,and a length of 3.2 inches?