Laura paddles in her canoe at a speed of 5 mph for 5 miles.
As we know that

Substitute the values we get

Laura hops on her windsurfer and sails for 12 miles at a speed of 6 mph.
Again using the above formula we can write

Hence from equation (i) and (ii), we can say total time of travel
It should be " b "
That should be right but u may want to wait for others to respond to this to make sure
Answer:
Step-by-step explanation:

From the initial condition,

So we have that 