Answer: x = 1 + 0.5c
Step-by-step explanation:
The direction you are traveling to get back home is North
In terms of its radius
, the volume of the balloon is

The diameter
is twice the radius, so that in terms of its diameters, the balloon's volume is given by

Differentiate both sides with respect to time
:

The diameter increases at a rate of
. When the diameter is
, we have

or about 23,562 cc/min (where cc = cubic centimeters)
The answer is -9 do you get it?