Answer:
1) If the function is
, 
2) If the function is
, 
3) If the function is
, 
Step-by-step explanation:
To solve this problem you must apply the proccedure shown below:
f(6) means that you must substitute x=6 into the function above.
1. If the given the function
, you obtain:

2. If the function is 
Then:

3. If the function is 
Then:

Answer:
His friend took one from 61 and added it to 39. That made it easy to mentally add 40 and 60 to get 100. Then he mentally added 28 to 100 to get 128.
Answer:
$5.70
Step-by-step explanation:
→ Find the total amount they needed to pay
11.40 × 2 = 22.80
→ Divide the total by 4
22.80 ÷ 4 = $5.70
Answer:
3
Step-by-step explanation:
24/3 is equaled to 3
if you don't know what that means its 24 divided by 3