For this case we have the following functions:

The first thing we must do for this case is to subtract both functions.
We have then:

Substituting we have:

Rewriting we have:

Evaluating the obtained function for x = 3 we have:

Answer:
The value of the function evaluated at x = 3 is:

X is the number of weeks he is exercising starting summer
f(x) is number of total hours he exercised
Answer:
(1,-4)
Step-by-step explanation:
I also think- Because you're drawing on the same marble without replacing it.
Answer:
14n
Step-by-step explanation:
n - beads for each necklace , (6n) - beads for 6 necklaces
(2/3)n - beads for each bracelets, 12*(2/3)n=8n - beads for 12 bracelets
Altogether = 6n + 8n = 14n