Respuesta :

Answer:

5:45am

Step-by-step explanation:

75-30=45

add the 30 to 4:30

you'll have 45 mins left over, so 5:45

Answer:

He finished at 5:45 am

Step-by-step explanation:

turn 75 minutes also can be said as 1 hours and 15 minutes

so here given that he started at 4 hours and 30 minutes

finished at  =   ( 4 + 1 ) hours     (  30 + 15 ) minutes

                   =  5 hours  :   45 minutes

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