Answer:
-125w^6z^24
Step-by-step explanation:
Answer: One pound of cinnamon costs $12.80
Answer:
x = - 6, x = 6
Step-by-step explanation:

When the vertex is at the origin and the directrix is at y = -2.5, the the parabola must be facing upwards and have a general formula of y = 4a x^2. In this case, a is equal to 2.5 that is, y = 4*2.5 x^2 equal to y = 10 x^2