1st digit can be 0-9 = 10 numbers
2nd digit can be 10-1 numbers = 9 numbers
3rd digit can be 10-2 = 8 numbers
10 x 9 x 8 = 720 codes are possible
Answer:
It's 293 seconds
Step-by-step explanation:
Answer can be wrote in two ways. -2.5a-5/6b or -5a/2-5b/6
Answer:
its B!!!
Step-by-step explanation: