Answer:
The answer is 1. an exponential pattern ,friend (:
<u>ANSWER</u>

<u>EXPLANATION</u>
If we have an exponential expression of the form:

then, the result is a real number, <em>if and only if n is an</em><em> </em><em>odd</em><em> number.</em>
We analyze the options and find out that,the first option is where n is odd, because we have n=7.
Hence the only option that is equivalent to a real number is

The correct choice is A.
Answer:
x = -8. solve by balancing the equation.
Step-by-step explanation:
-2x = 16
x = -8
45.(2x-4)+ 5x; [2x+5x]-4; 7x-4
46. 0.4b-3.2+1.2b; [0.4b+1.2b] -3.2; 1.6b -3.2
47. 1/4g+6g- 2/3 6 1/4g -2/3
48. -12 -14= -26 the temperature was -26C at 11:00pm