Answer:

Explanation:
Given


Required
Which is lesser than both temperatures
I will answer on general terms, since no option were given.
For a temperature to be lesser than both temperatures, it has to be lesser than -4.2F because: -4/2F < 2.9
Let T be the temperature less than both, the inequality is:

So, the values of T can be -5,, -4.5 and so on.