Answer! 1. choose the best definition for the following term: exponent the number listed first when combining a variable and a number the number or value being raised to a power a letter that holds the place of some unknown value in mathematics shorthand that tells how many times the base is used as a factor, or how many times the base is multiplied by itself 2. choose the best definition for the following term: variable a letter that holds the place for some unknown value in mathematics a process where you must look for terms that have identical variable parts and then combine their coefficients a process where if two things are equal, one can be put in the place of the other and nothing will change terms that have identical variable parts