Write the cardinal number of set A={a ,e ,i ,o ,u]

Bruce is getting materials for a chemistry experiment his teacher gives him a container that has 0.25 liter of liquid in it.bruce need to use 0.4 of this liquid for the experiment. how much liquid will bruce use?

Which fraction is equal to 1hole and 2/5? a.3/5 b.75 c.57 d.73

The angles in a triangle are represented by 5x, 8x, and 2x+9. what is the value of ? a.10.8 b.11.4 c.9.7 d.7.2