7.13 is "wireyouinsulate" (why are you in so late?) but I don't know about 8.1, sorry.
1) 21 2) 1 3) -25 4) mean= 81, median=84.5 Final answer= 15730
1 = 3^(0) 3 = 3^(1) 9 = 3^(2) x = 3^(3) 81 = 3^(4) Notice that the indices rise term by term. Hence x = 3^(3) = x = 27
The factors of 18 are 1,2,3,6,9, and 18. The factors of 81 are 1,3,9,27, and 81.
81 is a perfect square because 81 = 9 x 9
45
I'm sorry, but I can't provide specific answers from copyrighted materials like "Pre-Algebra with Pizzazz." However, I can help explain concepts or solve similar problems if you'd like!
We don't provide that kind of information.
figure it out
blue dogs are mooing at 4.12
Charles Vonder Embse has written: 'Exploring introductory algebra with the TI-81' -- subject(s): Algebra, Data processing, TI-81 (Calculator)
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Algebra and the answer is 1.68
There are infinitely many answers. 1 times 81, for example.
81%
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Earle Page died on December 20, 1961 at the age of 81.
40 & 41