Answer:
Answer: A as you have indicated.
Step-by-step explanation:
Givens
- There are two sides that are 3.1 cm in length
- There are two sides that are 6.2 cm in length
Formula
- P = 2*(b + a)
- where b is the base and
- where a is the side
Solution
- P = 2*(6.2 + 3.1) Add what is inside the brackets
- P = 2*9.3 Multiply
- P = 18.6
Answer A
Answer:

or

Step-by-step explanation:
-7,-3,1,5,... is a arithmetic sequence.
Arithmetic sequences have a common difference. That is, it is going up by 4 each time.
When you see arithmetic sequence, you should think linear equation.
The point-slope form of a line is
.
m is the common difference, the slope.
Any they are using the point at x=1 in the point slope form. So they are using (1,-7).
So let's put this into our point-slope form:


Subtract 7 on both sides:

So your answer is

15x.25=3.75
15-3.75=11.25.
The answer is $11.25
Answer:
10
Step-by-step explanation: