A customer orders a side of “Flo’s grab bag of flapjacks” in which a customer gets one randomly chosen pancake. Flo has prepared a pan of 12 sourdough pancakes and 15 buttermilk pancakes. How many banana pancakes should Flo add to the pan if she wants the probability of randomly grabbing one banana pancake to be 1/10 ?

The architect's side view drawing of a saltbox-style house shows a post that supports the roof ridge. the support post is 8 ft tall. the distance from the front of the house to the support post is less than the distance from the post to the back of the house. how far from the front of the house is the support post positioned?