Can someone please explain the equation I am supposed to use ​

Amovie streaming service charges it’s customers $15 a month. martina has $98 saved up. will she have any money left over if she pays for the maximum amount of months she can afford? explain.

The graph of a hyperbola is shown. what are the coordinates of a vertex of the hyperbola? (0, −4) (−3, 0) (0, 0) (0, 5)

Pls math have no ideamultiply and simppify. 2x^2y^3z^2 • 4xy^4x^2