Ais accepted to be true without proof, while a is an assertion that can be proven using the rules of logic. a.theorem; problemb. given; postulatec. postulate; theoremd. theorem; postulate

  C.  postulate; theorem

Step-by-step explanation:

While a "given" is taken as true without proof, and a "problem" sometimes involves an assertion that can be proven, the answer choices involving these terms are not correct here.

The dictionary definitions of "postulate" and "theorem" apply. It is useful to learn the meaning of these terms so you can understand problems and descriptions that use them.

x/3-10=8

x/3=18

x=48