There are 12 students in a jewelry making class and 8 sets of charms what fraction of charms will each student get

Add the two expressions 3.8b - 7 and 2.9b + 9 enter your answer in simplified form

Acollection of coins has value of 64 cents. there are two more nickels than dimes and three times as many pennies as dimes in this collection. how many of each kind of coin are in the collection?

Bob is putting books on a shelf and takes a break after filling 18 1/2 inches on the book shelf. the book shelf is now 2/3 full. how long is the entire bookshelf?