First find the total time Missy spends watching reality shows: 5 shows * 28 minutes / show = 140 minutes. Then add that amount to the time she spends watching the cartoon: 140 minutes + 10 minutes = 150 minutes.
This justifies what answer for what question? Q & A:
Missy watches 5 28-minute reality shows and one 10-minute cartoon. How long does she spend watching TV?
150