If ∠7 = -7x2 + 6y + 5, m∠4 = -9x + 3x3 - 4y, and m∠5 = 6y°, find the sum of ∠6 and ∠1. Accurate to 3 decimals. I need help please this is hard for me

If you answer right ill give brainliest, : )

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.

Which graph represents the equation y =4x