<h3>What is Cost Price?</h3>
This refers to the price which a seller or a merchant purchased a good and this would be a good determinant to find out the selling price so that he could make a good profit.
<h3>Selling Price</h3>
This refers to the price which a good is sold and there are several factors which are taken into account such as:
Mathematically, the<em> profit= </em>Cost price - Selling Price (Expenditure)
Please note that your question is incomplete so I gave you a general overview so that you could have a better understanding of the concept.
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Y=-1/4x+7.5 is the right equation
Can help me plzz f) i) dont need
Answer:

Step-by-step explanation:
put them both in exponential form and then since they are both base 6, you can add the exponents.

Answer:
2/9
Step-by-step explanation: