Solve the all parts of given question:
Question: A woman starts to swim directly across a 6.8-km-wide river. Her speed with respect to the water is 1.5 m/s. The river current carries the woman downstream at a speed of 0.91 m/s.
Part A: How much time does it take her to cross the river? S
Part B: How far downstream will the river carry her by the time she reaches the other side of the river? m
Please show work and steps. Do not just copy paste from the internet. Thank you.