Your answer D. 8 is right; this is

64, which we know is 3 because 4^3 is 64.
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Hope this helps!
==jding713==
Answer:
2) 24 hours in a day
3) 1000
4) 3
5) 1000
6) 1000
Step-by-step explanation:
Answer:
4
Step-by-step explanation:
We have 6f - 7z, where f = 3 and z = 2. Essentially, we just plug in these values:
6f - 7z
6 * 3 - 7 * 2
18 - 14
4
The answer is thus 4.
<em>~ an aesthetics lover</em>
Answer:
12.) b = (2S/n) - a
13.) x = 1000 - 20y
Step-by-step explanation:
12.) *goal is to isolate b
S = n/2 (a + b)
S(2/n) = a + b
**multiply both sides by 2/n to get rid of n/2
(2S/n) - a= b
***subtract a from both sides to leave b alone on one side
13.) *goal is to isolate x
0.30x + 6y = 300
0.30x = 300 - 6y
** subtract 6y from both sides
x = (300 - 6y)/ 0.30
*** divide 0.30 from both sides to leave x bu itself
x = 1000 - 20y or -20y +1000
****300 ÷ 0.30 = 1000
-6 ÷ 0.30 = -20
Done!
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