Unit Test Answers

An arithmetic series contains 14 numbers. The first number is 12. The last number is 38. What is the sum of the series?

The linear system below represents the sales of large and small popcorn servings at a movie theater for two consecutive days.What is the size of the augmented matrix for this system?

Which of the following can be used to evaluate the series ?

Modern Electronics offers a one-year monthly installment plan for a big screen TV. The payment for the first month is $62, and then it increases by 4% each month for the rest of the year. Which expression can be used to find the total amount paid in the first 12 months?

What is the product?

Khalid wrote the sequence below.Which formula can be used to find the 10th term of the sequence?

What is the sum of the first 34 numbers in the series below?147 + 130 + 113 + 96 + . . .

The explicit rule for an arithmetic sequence is What is the value of the 47th term? Round to the nearest tenth, if necessary.

Ms. Clark earned $29,600 in her third year as a banker and $32,600 in her seventh year. How much did she make in her tenth year? Assume that her yearly salaries form an arithmetic sequence.