Answer:

Step-by-step explanation:
Using the rule of exponents
=
, hence
f(- 2) =
=
= 
C. 2
2x10 = 20 +10x10=100 100+20= 120
12x10=120
C. is the answer.
The total number of the bags sold by the shopkeeper will be 65532.
<h3>What is number series?</h3>
The sequence formed by using the numbers is termed as the number series.So in this question from day one to day seven each day the sold items are multiplied by 4.
So the mathematical expression will be given as:


Hence the total number of the bags sold by the shopkeeper will be 65532.
To know more about number series follow
brainly.com/question/6561461
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Answer:

Step-by-step explanation:
see the attached figure with letters to better understand the problem
we know that
In the right triangle ABD

In the right triangle BCD

remember that
m< BAD=m<CBD
therefore

equate the equations



Answer:
3
Step-by-step explanation:
6=24-6a
6a=24-6
6a^6=18^6
a=3