Answer:
A) 28/39
Step-by-step explanation:

Answer:
17
Step-by-step explanation:The rule is that x is increased by one then added to x
So 5 + 6 = 1
So 8 +9= 17
750 kilometers. 21 divided by 7 is 3. If 7 cm equals 250 km, then 7 × 3 = 250.
What is equivalent to 9?
9/1 = 9
9/1 is equivalent to 9.