From 9 P.M. to 5 A.M. the temperature dropped 20°, making the rate over 8 hours, -2.5° Per Hour. By 5 A.M., the temperature is -5° since we had to do 15 - 20. From 5 AM to 5 P.M. is 12 hours so -2.5 x 12 = -30 making 30 how much the temperature dropped between 5 A.M. to 5 P.M. Finally, our last equation is -5 - 30 making -35 our answer.
Average of 5 games is no more than 74
So total 5 games with average 74 is:
74 x 5 = 370
First 4 games:
77+ 71 + 77 + 67 = 292
Find highest score on the last game
370 - 292 = 78
So highest score on the game 5 you can shoot is 78
Answer is B. 78
