The answer is Square *8=h
I hope this helps.
5-3 is 2 multiply that by 3 and you get 6 add that to 53 and you get 59... using PEMDAS
Based on the scenario, the initial temperature would be :
28 = (60) (1/2)^x/30 + 20
(60) (1/2)^0/30 + 20 = 60 + 20 =
80 C
Hope this helps