Answer:
111 minutes
Step-by-step explanation:
step 1
Find out how long are the six commercial
Multiply the number of commercials by 90 seconds
so

Convert to minutes
Remember that


step 2
Subtract the duration of six commercials from the duration of the program
Remember that

so

therefore

11.4 - 15.7 = -4.3. The temperature at midnight is -4.3<span>°F.
Hope this helps! Have a great day :)</span>