Answer:
1 is correct answer
Step-by-step explanation:

hope it helped you:)
Answer:
Step-by-step explanation:
Where is the question?
Answer:
see explanation
Step-by-step explanation:
The terms form a geometric sequence with n th term
= a 
where a is the first term and r the common ratio
r =
=
= ......
r =
=
= - 2 and a = 3, hence
= 3
← explicit formula
Answer:
$48.30
Step-by-step explanation:
If the dinner was $42.00 and they wanted to give a 15% tip, then to find that start by multiplying 42 by 0.15
42.00 x 0.15 = 6.3
now add $6.30 to $42.00
42 + 6.3 = 48.3
<h2>
Explanation:</h2><h2 />
Hello! Remember you have to write complete questions in order to get good and exact answers. Here I'll help you assuming some things. First of all, for a two dimensional shape, the perimeter is defined as the distance around it. Suppose we have a rectangle whose dimensions are:

So in this context:
Correct option is D. 10x - 20