Using the quadratic formula
Answer:
Step-by-step explanation:
x = 0.8 + 0.2y
The first and last one are true!
Simplify 1/4x to x/4
-x/4 - 14y - 1/8x + 2y + 18
Simplify 1/8x to x/8
-x/4 - 14y - x/8 + 2y + 18
Collect like terms
(-x/4 - x/8) + (-14y + 2y) + 18
Simplify
-3/8x - 12y + 18
Pet store is a better price because it cost $14.54 while pet store 1 is $14.88. Pet store 2 is cheaper by 34 cents.