Dianna has 4 quarters, 3 dimes, and 3 nickels in her purse. she reaches into her purse and randomly grabs two coins, one at a time. what is the probability of first picking a dime and then, without replacing it, selecting a nickel?

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?