Answer:

Step-by-step explanation:
The given equation is :
-20= -4 - 6x
We need to find the value of x. It can be done by collecting like terms togther as follows :
-20+4=-6x
⇒-16=6x

So, the solution of the given equation is 8/3.
Answer:
The sum of the first 880 terms in the sequence is 2,273,920.
Step-by-step explanation:
Arithmetic sequence:
The difference between consecutive terms is always the same, called common difference, and the nth term is given by:

In which d is the common difference.
Sum of the first n terms:
The sum of the first n terms of an arithmetic sequence is given by:

ai = ai-1 + 6
This means that 
In this question:
Sum of the first 800 terms, so 
First term is -53, so 
The 880th term is:

Sum

The sum of the first 880 terms in the sequence is 2,273,920.
$862.52 or $863 (rounded)
To get tax, you turn 6.75 percent into 0.0675 and multiply that by 807.98 The product is 54.54 when rounded and you then add that to 807.98 and your product (price+tax) is $862.52
Hope this helps
It already shows that AB is 49°
in order to find ABC you must first find BC
360 - (AC + AB) = BC
360 - 156 = BC
204° = BC
NOW add BC with AB
49 + 204
253
angle ABC is 253°
now to find BAC add AB and AC
49 + 107 = 156°
angle BAC is 156°
FINALLY to find ACB add AC and CB
107 + 204
311°
angle ACB is 311°