His score changed by -20.
Because 4*-5 equals -20.
Answer: 1,395 gallons
Step-by-step explanation:
There are 31 days in December.
If using this water fixture would reduce water usage to 45 gallons per day, the number of gallons to be used in December is:
= 45 * 31 days
= 1,395 gallons
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This is the answer:
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Step:
* To raise a power to another power, multiply the exponents. Multiply 1/2 and −2 to get −1.
* To raise a power to another power, multiply the exponents. Multiply −1/4 and −2 to get 1/2.
The answer is 7794, rounded is 7790.
Since the 4 in the ones place is not greater than 5, you round down and get 0.
144 - 49 = 95
RT = √<span>95 = 9.75
answer is </span><span>C)9.75</span>