Indicate which of the following are variables and which are constants: (a) Lew’s hair color (b) Age in years (c) Number of windows in your residence (d) Color of the late-model car parked in front of...

Indicate which of the following are variables and which are constants:

(a) Lew’s hair color

(b) Age in years

(c) Number of windows in your residence

(d) Color of the late-model car parked in front of the building

(e) What time it is right now

(f) Number of possible correct answers on this week’s quiz

(g) Number of signers of the Declaration of Independence

(h) Name of the fifth girl in the third row

(i) Today’s date

(j) Number of words remembered on a memory test