carson has only $20 bills and$10 bills in her wallet. the total vale of the bill is $50. she has 1 more $20 bill then $10 bills.
1 answer:
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Answer:
B. 7.3 %
Step-by-step explanation:
Given:
Initial average grade = 82
Final average grade = 88
Duration for the increase = 3 weeks
Therefore, increase in average grade = Final - Initial = 88 - 82 = 6
Now, percent increase in average grade is given as:
Therefore, the percent increase in her average grade over the 3-week period is 7.3 %.