Myra took a math quiz last week. There were 30 problems on the quiz and Myra answered 60% of them correctly. How many problems d
2 answers:
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Answer:
Option B -
Step-by-step explanation:
Given : Fidel has a rare coin worth $550. Each decade, the coin's value increases by 10%.
To find : Which expression gives the coin's value, 6 decades from now?
Solution :
The given situation represents the exponential function,
where, a is the initial value i.e. a=$550
r is the increased rate r=10%
n is the time i.e. n=6
Substitute the value in the formula,
Therefore, option B is correct.