30:6 is an equivalent ratio. Anymore and you would have a decimal.
The answer is -7 hope this helps!
Answer:
$159
Step-by-step explanation:
we know that
The equation of a exponential growth function is equal to

where
y is the balance in the saving account
x is the number of years
a is the initial amount
r is the percent rate of change
we have

substitute


For x= 1 year
substitute
