8 and 10 aren't functions. In a function each input has only one output.
For 8, input 1 = 4, 7
For 10,input 3=7, 6
Peers if not of similar circumstances may be biased or not understand the situation as well.
Answer:
35
Step-by-step explanation: I used a protractor
Let's say "m" is the manufactoring cost per drill (in dollars).
Then the manufactorer sells it for $4 more, so this would be:
m+4
Then the chain store sells it for 140% of the price is paid the manufactorer, so this would be "140% of (m+4)" which translates to "1.4•(m+4)" or more simply:
1.4(m+4)
P(m) = 1.4(m+4), where m is the initial manufactoring cost (in dollars).
Simplifying, you could rewrite this as:
P(m) = 1.4m + 5.6
