Mary has a total of 23 coins made up of nickels and quarters that made a sum of $3.15. how many more nickels than quarters does she have? a) 10 b) 3 c) 8 d) 7 e) none of these

Witch represents the inverse of the function f(x)=1/4x-12

Astore has clearance items that have been marked down by 60%. they are having a sale, advertising an additional 55% off clearance items. what percent of the original price do you end up paying?

The birth weights of newborn babies in the unites states follow in a normal distrubution with a mean of 3.4 kg and standard deviation of 0.6 kg. reaserches interested in studying how. children gain weights decide to take random samples of 100 newborn babies and calculate the sample mean birth weights for each sample