Mr smith has a security box. He forgot the code to open the box. He only remembers that the code is a 3 digit number, the single digit is bigger than the 10's digit, and the tenth digit is bigger than the hundreds digit. How many times at MOST will he need to open the box?

84

Step-by-step explanation:

7+6+5+4+3+2+1 = 28

6+5+4+3+2+1 = 21

etc.

28+21+15+10+6+3+1 = 84

84

Step-by-step explanation:

7+6+5+4+3+2+1 = 28

6+5+4+3+2+1 = 21

etc.

28+21+15+10+6+3+1 = 84

probably the last option

step-by-step explanation:

from the sentence, "tomorrow morning, akiko will arrive an hour late" depicts a third person perspective because it doesn't use any pronoun to replace akiko, the subject of the sentence, and it is in singular form since akiko is only one person.