For this case we must find the value of the variable "p" of the following equation:

We apply distributive property on the left side of the equation taking into account that
and
:

We add similar terms:

We subtract
from both sides of the equation:

We subtract 8 from both sides of the equation:

We divide by -6 on both sides of the equation:

Answer:

Answer:
$60.
Step-by-step explanation:
Cost price= $50
Selling price = $80
Percentage markup = Gain/Cost price x 100%
=30/50x100
=$60.
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