Let's say o is the height of an ostrich and k is the height of a kiwi. 4k is four times the height of a kiwi. 4k + 20 is 20 inches more than 4 times the height of the kiwi, so o = 4k + 20.
I can't solve this without knowing the height of the ostrich, so if you have that comment and I'll edit the answer.
Step-by-step explanation: The range is the difference between the greatest number in the data set and the least number in the data set which in this case is 99 - 54 or 45. So the range of this data set is 45.
