Fiona has a jar filled with 150 coins made up of quarters and nickels. the total value of coins is $25.10. let x represent the number of quarters in the jar. which equation can be used to find the number of quarters? a. 0.25+0.05(x-150)=25.10 b. 0.05x+0.25(150-x=25.10 c. 0.05x+0.25(x-150)=25.10 d. 0.25x+0.05(150-x)=25.10

Can someone answer it, and plot it, for 20 points and brainliest answer? p. s. they're the same ! : )

The lengths of nails produced in a factory are normally distributed with a mean of 4.91 centimeters and a standard deviation of 0.05 centimeters. find the two lengths that separate the top 4% and the bottom 4%. these lengths could serve as limits used to identify which nails should be rejected. round your answer to the nearest hundredth, if necessary.

Last week , donnell practiced the piano 3 hours longer than marcus . together, marcus and donnell practiced the piano 11 hours . for how many hours did each young man practiced the piano