Answer:
77 boxes
1,000 / 13 = 76.9230769
They can't sell part of a box and a little extra money never hurt any one.
There is no image?? Can you tell me the problem under this comment?
Natural environment has the ability to gather some pollutants yet if too much then the environment could no longer handle it. A leaky sewage can pollute an aquifer with I. arsenic as the contaminant. Arsenic is a metalloid existing in the Earth's crush. Exposure is natural yet can be aggravated by the human activities.
Answer: −2x2+x−10
Explanation:
x2−x−3−1−3x2+2x−6
= x2+−x+−3+−1+−3x2+2x+−6
Combine Like Terms:
= x2+−x+−3+−1+−3x2+2x+−6
= (x2+−3x2)+(−x+2x)+(−3+−1+−6)
= −2x2+x+−10
