She has no intention to looking foolish. i hope this helps
Okay. So, because the exponent is an odd number, the answer will be negative and "x" will be a negative number. If you know about cubic units, you can see that -6³ is equivalent to -216. -6 * -6 * -6 is -216. x = -6.
Three They are all pretty un-important to the rest of the story. Why didn't you just google this?
A) 6 and 5 are coefficients

2y+6=5
2y=(-1)
y=(-0.5)
coefficients --> 2
constants--> 6&5
variable--> y
equation--> 2y+6=5