Mary and Sam need to plant 198 trees. If Mary can plant 12 trees in 5 hours and Sam can plant 14 trees in 7 hours
1 answer:
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Answer:
At the beginning of 6th month , Jeff will have in his account $ 520 .
Step-by-step explanation:
At the beginning of 6th month , Jeff will have in his account,
$
= $
= $
= $
= $ 520
since, the $ 100 deposited at the end of 1st month earns interest for 4 months till the end of the 5th month, the $ 100 deposited at the end of the 2nd month earns interest for 3 months and so on till the last $100 deposited earns interest for '0' month.