Answer:
, 
Step-by-step explanation:
Given
A motorboat takes 5 hours to travel 200 miles upstream and 4 hours to go downstream
Suppose the speed of motorboat in still water and rate of current be x and y respectively.
during upstream

During downstream

Add (i) and (ii) we get


Thus, the speed of boat in still water is
and rate of current is 
☁️ Answer ☁️
So I got:
-2.9d + 4.6h - 14
Hope it helps.
Have a nice day hyung/noona!~  ̄▽ ̄❤️
Associative property of addition
You first do 432 divided by 9 which is 48. However, there could be multiple dimensions for the base because 48 is a composite number. One example could be 6 by 8
12÷3=4
cause 1/3 in this situation is 3 cause 12÷4 is 3