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 sat and act tests use very different grading scales. the sat math scores follow a normal distribution with mean 518 and standard deviation of 118. the act math scores follow a normal distribution with mean 20.7 and standard deviation of 5. suppose regan scores a 754 on the math portion of the sat. how much would her sister veronica need to score on the math portion of the act to meet or beat regan's score?

Ijust need to see how to do this. so you don’t have to answer all of them just a step by step explanation of one.

Acyclist bike x distance at 10 miles per hour .and returns over the same path at 8 miles per hour.what is the cyclist average rate for the round trip in miles per hour ?