Mrs Tan has 40 pupils in her class. She gives each of them 3 sweets and has 2 sweets left. How many sweets does she have at firs
2 answers:
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Answer:
$542
Step-by-step explanation:
we know that
The equation of a exponential decay function is given by
where
y is the value of the lawnmower
x is the time in years
a is the initial value
r is the rate of change
we have
substitute
For x=5 years