Answer:

Step-by-step explanation:
To solve, isolate your first equation for y.

Now, plug in this y value to your second equation.

Now, plug your x value into your first equation and solve for y.

Answer:
the answer is -13
Step-by-step explanation:
In 14 weeks, if you turn both of those into equations you'll get

and

You should be then able to graph this and see that intersects at 14 weeks at 220 dollars
Answer:
Point-slope form: y-3= -3.(x+10)
Slope intercept form:y= -3x+3
Step-by-step explanation: