"Since the ratio is 5:7 you can think in total there was 12 equal blocks of money invested. 5 of those blocks belonged to Jim and 7 of those blocks belonged to Gail. Since they invested $3,600 and then made $6,450 in total there is $10,050. Divide that total into 12 equal blocks of $837.50 and 5 of those blocks belong to Jim. So he will get $4,187.50"
It’s the same because 360 degrees is a full rotation
So 1/8 per month
1/8 * 12 months = 3/2
Reduced is 1 1/2 inches per year
