Select all the expressions that are equivalent to . 1. 9−10n

2. 14−3n

3. 14−21n

4. (2−3n)⋅7

5. 7⋅2⋅(-3n)

20 ! identify the degree of comparison of the underlined adjective or adverb. read the sentence. for marley, spelling is the most difficult subject. which best identifies the degree of comparison of the underlined adjective or adverb? -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-a. imperativeb. comparativec. superlatived. positive