Step-by-step explanation:
Any number divided by zero, its value can't be determined. Hence it is called as indeterminate form. So is with zero divided by zero.

Answer:
69%
Step-by-step explanation:
10×10 table, 69 cells are orange. Therefore the fraction 69/100 as a percentage is 69%.
Answer:
-1.75.
Step-by-step explanation:
The z-score = (n - m) / d where n is the value (13) m = mean and d = standard deviation.
= (13 - 20) / 4
= -1.75 (answer)
8/12 and 4/6 and10/15 and20/30 and 40/60
Answer:
9.75
Step-by-step explanation:
48-3=45
45-9=38
38÷4=9.75