Answer:

Step-by-step explanation:
From the question we are told that:
Cost Price 
Sale Price 
Generally the equation for Profit P is mathematically given by



Therefore as a percentage
Percentage Profit X is given as


Answer:
yes
Step-by-step explanation:
Answer:
<em>Marika's calculation is correct</em>
Step-by-step explanation:
<em>Lori has erroneously identified a common ratio of the geometion sequence</em>
<em>one has to divide subsequent term by the preceding term as was correctly by Marika. so Marika's calculation is correct.</em>
<em>hope it helps...</em>
<em>have a great day !!!</em>
Answer:
4-6b is the correct way to say it
Step-by-step explanation: