The following system has a solution of x = -5, y = 9, z = 11.
4x + y + z = 12
-4x-y-z=-10
5y-z = 9
select the best answer from the choices provided
ot
of

Plz determine whether the polynomial is a difference of squares and if it is, factor it. y2 – 196 is a difference of squares: (y + 14)2 is a difference of squares: (y – 14)2 is a difference of squares: (y + 14)(y – 14) is not a difference of squares

F(n + 1) = f(n) – 8. if f(1) = 100, what is f(6)?

The price of a visit to the dentist is calculated according to the formula 50+100n50+100n where nn is the number of cavities the dentist finds. on your last visit to the dentist, 22 cavities were found. what was the cost of your visit?