Step-by-step explanation:
answer is in photo above
Answer:
-0.625 unit
Step-by-step explanation:
Given that:

where;
p = price
q = quantity
To find the rate of change of quantity (q) with respect to price (p) we go by the differentiation



when P =40
Then 4(q+3)² = 100, 000
(q+3)² = 
(q+3)² = 25,000
(q+3) = 
q+ 3 = 50
q = 50 -3
q = 47
NOW; 




Thus, the rate of change of quantity with respect to price when p = $40 is -0.625 unit.
There are tons! But here are a few examples for ya:
4/16
6/24
8/32
1/4
Hope this helps!!
141= 1/3x+ 2/3x X= # candy bars sold
141/3= 47
47*2=94
94+47=141
Today= 94 candy bars sold
Last Friday=47 candy bars sold