<span>This problem is solved using dimensional analysis. It is known that there are 5280 yards in a league and that there are 3 feet in one yard. Finally, it is known that there are 6076 feet in one nautical mile. As a result, we can multiply these dimension together, making certain that the units cancel and leave us with only nautical miles.
It is done as follows:
(610 leagues)(5280yds/1 league)(3 ft/1yd)(1 nautical mile/6076ft)= 1590 naurtical miles.</span>
Carla cut the 8 in half to make four, so the same <span />
First, look at the coefficients. They are 18 and 27, which means the final answer will have the coefficient of 9, since its the GCF in between them.
Look at the xs. Since there aren't any in the second expression, it's not part of the answer.
Now, look at the ys.
The GCF in between y^7 and y^3 is y^3.
Finally, look at the ws.
The GCF in between w^4 and w^6 is w^4.
Put them all together, and the answer is 9y^3w^4
Hope this helps!