To model half-life, use the formula 
. Here, 
is the amount remaining after a length of time 
. 
is the amount that you start with. 
is the half-life. You plug in 50 for , 10 for , and 25 for . You get 
.
Lindsay opened a lemonade stand on her street. It costs her $15.00 to buy the supplies each day, and she sells lemonade for $2.0
1 answer:
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Answer:
(2 decimal places)
Step-by-step explanation:
Quadratic Formula:
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Plug in values:
First value of x:
(2 decimal places)
Second value of x:
(2 decimal places)