Martin is taking a test at school. his teacher gave him 1 hour and 15 minutes to complete the test. he has been taking the test for 54 minutes. how many minutes does martin have left to finish the test?

Converting 1 hour and 15 minutes to minutes only, its 75 minutes. 75 - 54 is 21. So, Martin has 21 minutes left to finish.

Awnser:

He has 21 minutes left to complet his test

Step-By-Step:

1 hour+15 mins = 1hour and 15 mins

(60+15= 75)

1hour & 15 mins - 54 mins = 21 mins

(75-54=21)

Hope this helps :3

50 min

step-by-step explanation:

they will be decreasing both their times in half

60 / 2 = 30

40/2 = 20

30 + 20 = 50

step-by-step explanation:

the true ones are a b and d