Answer:
2 mountains per month.
Step-by-step explanation:
This is a fraction equal to
0.5 mountains ÷ 0.25 month
We want a unit rate where
1 is in the denominator,
so we divide top and bottom by 0.25
0.5 mountains ÷0.25
--------------------
0.25 month ÷0.25
=
2 mountains
--------------------
1 month
=
2 mountains
--------------------
month
= 2 mountains per month