Can a polynomial have a zero as a term

Fredrick designed an experiment in which he spun a spinner 20 times and recorded the results of each spin

Adj has a total of 1075 dance and rock songs on her system. the dance selection is 4 times the size of the rock selection. write a system of equations to represent the situation.

Lucy and donavan measured the length of the school garden. lucys measurement is 11.3m and donavans measurement is 113 cm. could both be correct? explain