Answer:

Step-by-step explanation:
Given sequence: 
Therefore,
General form of an arithmetic sequence: 
(where a is the first term and d is the common difference)
To find the common difference, subtract a term from the next term:

Therefore,

To find the 6th term, input n = 6 into the equation:

Answer:
The answers are, "John saves $35 dollars the first week" and "John is saving at a faster rate than Barb"
Answer:
76
Step-by-step explanation:
1. Replace n with 10. The equation will look like:
-5+9(10-1)
2. Remember PEMDAS! The first step in solving the equation is solving whatever is in the parenthesis:
-5+9(9)
3. The next step is exponents, but since there aren't exponents in the equation, we move to multiplication and division. The equation should now look like this:
-5+81
4. Now we move on to addition and subtraction; add the two numbers!
-5+81=76
There's your answer!! Hope this helped :)
Sorry I don't what the answer would be for A. But B would be (3,13)
Answer:
1.66667
Step-by-step explanation:
4 x ? = 12 ? = <u>3</u>
so,
z x ? = 5
5/<u>3</u> = 1.6666667