Algebra in science - Paper planes

 
In math this semester we've been learning about geometry and how algebra relates to science. My group and I did speed on paper plane using the velocity formula.

he great and all but he bias 

The piano

1. First piano was made in Italy by  Bartolomeo Cristofori

2.what the first piano looked like

3.You have to press hard on the keys on a piano, but since the keys on the keyboard is made of plastic it is easier the press down on

4. I enjoy the loud sound coming from the piano, ps it just sounds better