Respuesta :

Answer:

t=0.6

Step-by-step explanation:

subtract 3.9 from 4.5, and then you get your answer

Answer:0.6

Step-by-step explanation: the reason it’s 0.6 is because this 4.5 - 3.9 = 0.6 then u check it with adding see watch 3.9 + 0.6 =4.5