Ineed answer to study for my math test. morita works in a florist shop and makes flower arrangements. she puts 10 flowers in each vase and 2/10 tenths of the flowers are daisies.

part a
if morita makes 4 arrangements, how many daises does she need?

part b
last weekend, morita used 10 daises to make flower arrangements. how many flowers other than daises did she use to make the arrangements? explain your reasoning.