Answer:
4 would be the answer hopefully
7 is closer to 10 and is more than half. 5 and up, go up one. 4 and below, stay the same.
8.475= 8.5
Answer:

Step-by-step explanation:
The missing parameters are:
--- Cost of marble countertops
--- Cost of retail markup
Required
The cost of marked up price
This implies that we calculate m(c(a))
We have:

can be written as:

Substitute:


Hence, the cost of marked up price is: 
The answer is: -4/a^2 b^2