Answer: 20 cm
Step-by-step explanation:
X+5/5=X+9/7
-X. -X
5/5=9/7
there is no solution
Answer:
4
Step-by-step explanation:
In 3 mintues the duck goes 12 kilometers. 12 divided by 3 is 4. I take 1 mintues to go 4 kilometers.
Answer:
b
Step-by-step explanation: