Your question is very vague, there is no multiple choice answers, your question lacks basically everything.
-2+(-2=4?
12 because the 23 3/8 is rounded down and the 11 2/9 is rounded down as well
Right side:
(1/27)^(2x+10)
=(3^-3)^(2x+10)
= 3^(-6x - 30)
Re-write both sides:
3^(4x-5) = 3^(-6x - 30)
from here, you can solve x
4x - 5 = -6x - 30
4x + 6x = -30 + 5
10x = -25
x = -2.5
I used the quadratic formula and got x= 4, -6
You move the decimal point forward until it reaches the one so it looks like this:
1.4 x 10⁵
the exponent, 5, just tells you how many spaces the decimal point moved.
