You already posted this one lol I answered it already.
1) Answer: 
<u>Step-by-step explanation:</u>
f(x) = 6x⁻¹
f'(x) = -6x⁻²
= 
f'(-2) = 
= 
= 
*****************************************************
2) Answer: 
<u>Step-by-step explanation:</u>
f(x) = -9x⁻¹
f'(x) = 9x⁻²
= 
f'(6) = 
= 
= 
1 is 34.5 and 2 is 71. hope it helps:)
" the product " means multiply......" the difference " means subtract
the product of 5 and the difference of q minus 5 =
5(q - 5) <== ur expression
Answer:
Concept: Mathematical Modeling
- 163 donuts for 60
- She mad 55 in profit: 55/163= .33 per donut
- P(n)= 163(n)
- Note: You didn't provide the options