Question 1166505
(0, 0.05)
(4, 0.65)
y=ab^x
0.05=ab^0  so a is 0.05
0.65=0.05b^4
13=b^4
b=1.899 or 1.9
2007 is x=6
y=0.05*1.9^6
=$2.35 billion.