The only solution for
is
, so it's either
or
.
Both
and
are equal to 1, so the answer is
.
She spent $7.44 because 3.28 + 1.27 + 0.56 + 2.33 = 7.44
Answer:
Step-by-step explanation:
An exponential function is of the form
y=ar^x
Where y=final amount, a=initial amount, r=common ratio or rate, x= term number or time
Since y(0)=2, a=2
The common ratio or rate is 10/2=5, so the exponential equation here is
y(x)=2(5^x)
The table would be
y(2)=50, y(3)=250, y(4)=1250
In terms of (x,y) rows
2,50
3,250
4,1250
That would be 9,000,000,000 times 8, which equals 72,000,000,000. Since 9*8 is 72 accepts there's a 9 million.
