The answer is 4. If you multiply x by 3 you get 9 but if you multiply it by 5 you get 15. However, 3*4=12, which is greater than 10 but less than 14.
$13.33
Only information they give you is the prices unless i'm missing something.
D I did this question a while back
<span>F for Frank, A or Alice.
F(initial)=1.95 inches
A(initial)=1.50 inches
Frank's equation at .25 inches per year and t representing year variable.
F=1.95+.25t
Alice's equation at .40 inches per year and t representing year variable.
A=1.5+.40t
To figure out how old they will be when their beaks are the same lengths set the equations equal to eachother as the equations are length.
1.95+.25t=1.5+.40t
.45=.15t
t=3 years</span>