If y - 1/y =8 then find the value of y^2-1/y^3​

Tom had a total of $220 and he spent $35 on a basketball ticket . what percent of his money did he have left?

Inez has a phone card. the graph shows the number of minutes that remain on her phone card a certain number of days.

Ialready asked this but i never got an answer. will give a high rating and perhaps brainliest. choose the linear inequality that describes the graph. the gray area represents the shaded region. y ≤ –4x – 2 y > –4x – 2 y ≥ –4x – 2 y < 4x – 2