word problem:

1.A vendor cut pineapples in eighths.After selling 47 pieces he had 9 pieces left.how many pineapple did cut?

2.Bea has 7/8 of cake. If it will be divided equally among 4 person, what part of the cake will each one get?

3.how many 3/8 m pieces of lace can be cut a 3o-m of lace?

4.it takes aling mely 1 3/4 hours to make a piar of pajamas. If she works for 3 1/2 hours,homany pajas can she make