Final answer:
In algebra, the numbers multiplying variables in terms are called coefficients. Hence, 4.5 and 6.5 are coefficients in given terms, while -3 and -2.0 are constants.
Step-by-step explanation:
In specific algebra, the terms given like 4.5w - 3 and 6.5x - 2.0 involve variables and numbers. The numbers before the variables, 4.5 and 6.5, are known as coefficients. Coefficients are the factors that multiply the variables. In contrast, -3 and -2.0 are not coefficients in this context; they are constants added or subtracted from the terms with coefficients. Options 1 and 3 refer to coefficients, while Options 2 and 4 refer to constants that do not multiply a variable.