Lady Bird uses 1 1/4 cup flour to make 9 biscuits.  She’s hosting this month's Junior League club which has 18 members and wants to make sure she allows 2 biscuits per guest.  How many cups of flour will Lady Bird need?
There will be 18 members and she wants to allow 2 biscuits per member so that’s 18*2 = <<18*2=36>>36 biscuits
Her biscuit recipe yields 9 biscuits and she needs to make 36 biscuits so she needs to make 36/9 = <<36/9=4>>4 batches of biscuits
1 batch of biscuits uses 1 1/4 cup flour and she needs to make 4 batches so she will use 1.25*4 = <<1.25*4=5>>5 cups of flour
#### 5