The first table because the y side is increasing at the same rate. the rate is 4
The answer is 168 logs.
1st row: 15 logs
2nd row: 18 logs
3rd row: 21 logs
(so, each row has 3 more logs)
4th row: 24 logs
5th row: 27 logs
6th row: 30 logs
7th row: 33 logs
The sum of logs from each row is: 15 + 18 + 21 + 24 + 27 + 30 + 33 = 168 logs
X + 12 = 20
x + 12 -12 = 20 -12
x = 8
I think the answer is 66. But I'm not sure just try and see...!
