Diana owns a novelty shop in downtown San Antonio. She ordered a shipment of 48 party hats. Of the 48 hats that she ordered, 25% were blue. How many of the hats are blue?

1. 0.3 •4 is the same as 4 groups of 0.32. 7•0.8 is the same as 7 groups of 0.83. it increases by 0.5 every time, so 0.5x4 it increases by 0.9 every time, so 0.9x5. 0.9•12=10.86. 0.47•5=2.35i can finish the next ones in a separate post