Answer:
The answer is C
Step-by-step explanation:
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: 
Answer:
b
Step-by-step explanation:
Area of triangle: A = bh/2
Solve with the given values.
A = 4.5*2.25/2
A = 10.125/2
A = 5.0625
Round.
5.0625 -? 5.06
Best of Luck!