The height of glass 1 is 7.6
so, you find the volume of glass 2,= 26.376
then you subtract the answer from 80 cubic cm to get the volume of glass 1
80 - 26.376 = 53.694
then you work backwards to get the height, which is 7.6
I believe the answer is 8
<span>She needs to save an additional 108 quarters.</span>
Angle 1 is congruent to angle 7