Denny mowed his neighbors lawn for a handful of dimes and. nickel’s. when he counted them - because denny has no life, it came to 80 coins in all. upon completing the job he counted out the coins and it came out to $6.60. how many of each coins did he earn?

Don't know how to find x given these segment lengths

2people are trying different phones to see which one has the better talk time. chatlong has an average of 18 hours with a standard deviation of 2 hours and talk-a-lot has an average of 20 hours with a standard deviation of 3. the two people who tested their phones both got 20 hours of use on their phones. for the z-scores i got 1 for the chatlong company and 0 for talk-a-lot. what is the percentile for each z-score?

Spencer has 1/3 pound of nuts he divides them equally into 4 bags what fraction of a pound of nuts is in each bag