Answer:
Step-by-step explanation:
We have to find an equation of the form , where a is the initial value, b is the rate, and x is the time.
Here, the initial amount if 72, so a = 72. We also know that the population triples every hour, which means b = 3. Plug these in:
Answer:
$15 per pair
Step-by-step explanation:
We know that the total amount of money she spent on the shoes (without discount) is 3x. Since she used a $10 off coupon, the money she spent is 3x - 10, since $10 off means - 10. And this amount equals $35:
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