Answer:
The mean will increase
Step-by-step explanation:
X÷2=20. Want an explanation?
Answer:
one to one function
Step-by-step explanation:
360 meters is the answer as 9 meter in 1st second ,27 meter in 2nd and 81 in 3rd it is in a series of geometric progression ...of 9,27,81 in which 9*3 =27,27*3=81 so next number will be 81*3=243 total distance moved in 4 seconds is 243+81+27+9=360 meters