Answer:
$122.88
Step-by-step explanation:
the phone decreases by 20% each year , that is
(100 - 20)% = 80% = = 0.8
the phone reduces by a factor of 0.8 each year , then after 4 years
value = $300 × = $122.88
How do I find the volume
2 answers:
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You are looking for the circumference. which is C(circumference)= 
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the radius is =to half of the diameter.
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the radius is =to half of the diameter.
c=56.55