Answer:
900
Step-by-step explanation:
Answer:
48 ways
Step-by-step explanation:
Let me take a guess
S₁_₁₅ = (1+15)*7 + 8 = 120
There are 48 combinations of distinct digits from 1 to 15 to make 20
120-20=100
So every 20 has a corresponding 100
I wish I got it right, otherwise report it.
Answer:
300!! I think...
Step-by-step explanation:
30 x 10 = 300
4x10^7 The number of zeros the given number has would be the exponent
Answer:

Step by step explanation:
