7+3=10
10 units=280
divide by 10
1unit=28
smaller is 3 units
1unit=28
times 3 both sides
3unit=84
smaller is 84
Answer:
B.336.38
Step-by-step explanation:
I have experience this question before
Answer:
The answer is, C. Subtract 9 - 2
Answer:
40,320
Step-by-step explanation:
He can pick any one of the eight for the first examination.
He can pick any one of the remaining 7 for the 2nd examination.
He can pick any one of the remaining 6 for the 3rd examination.
...
He can pick any one of the remaining 2 for the 7th examination.
There's one left for the 8th examination.
Thus, there are 8×7×6×5×4×3×2×1 = 8! = 40,320 different possible orders in which the tubes can be examined.
