Y=55x+200, you multiply the number of weeks by the amount of money, and add 200 because they started with that.
Sorry I cant see the problem
Answer:
Therefore the value of x is

Step-by-step explanation:
Given:
which is

To Find:
x = ? using Quadratic Formula
Solution:
For a Quadratic Equation ax² + bx + c = 0 , Formula Method is given as

On Comparing with above we get

Substituting a , b , c in Formula method we get

Therefore the value of x is

-2z^2+5z-5; Quadratic trinomial, 3 terms