Which of the following equations is of a parabola with a vertex at (0, 3)?

a) y=(x-3)^2
b) y= (x+3)^2
c)y= x^2-3
d) y=x^2+3

Dean and karlene get paid to write songs. dean is paid a one-time fee of $20 plus $80 per day. karlene is paid a one-time fee of $25 plus $100 per day. write an expression to represent how much a producer will pay to hire both to work the same number of days on a song.