Answer:
$486
Step-by-step explanation:
First you find the area of the window. The area of a square is equal to h×w, so we take 9×9 which equals 81. Since it costs $6 per square foot, we now take 81×6, which gives us an answer of $486.
Answer:
it is -67
Step-by-step explanation:
The parabola opens upward. because 8x^2 is positive
B m-125. He started with m and spent 125