a book store is having a sale. all hardback books are 20% off l, and all paperbacks are 10% off. suppose you buy four paperbacks
2 answers:
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Answer:
$40 per week
Step-by-step explanation:
Step one:
Given data
the initial amount is = $100
the total amount= $500
let the number of weeks be x
Step two:
The expression for the scenario is
From the expression above, the rate of the change is $40 per week.
this means that in every week the account will be increased by $40