Answer:
3
Step-by-step explanation:
3 is the coefficient of c as it is a constant, whereas a and b are variables, subject to change.
Answer:
<h2>7x</h2>
Step-by-step explanation:

7 over 21 . because you add 7 plus 8 plus 6 and get 21 then have 7 white shirts
Answer:
4*4*4 = 4³
Step-by-step explanation:
Claire has 4 stamps.
Julia has 4 times as many as Claire or 4*4 = 4².
Damon has 4 times as many as Julia or 4*4*4 = 4³