Step-by-step explanation:
100*77+72/4
100*77+18
7700+18
7718
9x^2-49
It equals:
<span>(<span><span>3x</span>+7</span>)</span><span>(<span><span>3x</span>−7</span><span>)
Hope this helps!
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SNKRS watch Poseidon last by laughably Lance
Answer:

Step-by-step explanation:
The applicable rules of exponents are ...

Your ratio simplifies to ...

_____
Please note that simplifying the constants, -8/10 to -4/5, eliminates half the answer choices. Since exponents are only multiplied when a power is raised to a power, you can pretty much eliminate the second choice as being unreasonable. ((a^b)^c = a^(bc))
The answer is 9. 5625 / 625 = 9
This means that 5625 square feet of lawn would provide the daily supplies of oxygen for 9 people