Question

1.There are 30 logs in the bottom layer of a pile of logs, 28 in the next layer, 27 in the next, and so on to the top which has one log. a.) How many logs are there in the 15th layer? b.) How many logs are there all in the pile?
:<<<<<​

Answer 1

Answer:

uccyycycycycycyxxyxytxxtxfztxtdztztztdztztzeztztztdztztztd