What are sums in math I am really confused

What is the missing term of the arithmetic sequence? 6, __, 30, ... A. 12 B. 18 C. 22 D. 15

An employment agency requires applicants average at least 70% on a battery of four job skills tests. If an applicant scored 70%, 79%, and 89% on the first three exams, what must he score on the fourth test to maintain a 70% or better average?

What is the square root of n multiplied by 3 square root of n

What are three ratios that are equivalent to 7/6

Find the digit 5 in each of these numbers. 15.2 3.5 The 5 in 3.5 is 1 place to the right of the 5 in 15.2 Which sentence correctly compares the values? A. The value of the 5 in 3.5 is 1/100 times the value of the 5 in 15.2 B. The value of the 5 in 3.

If the length of side a is 16 centimeters, the length of side b is 10 centimeters, and m = 42°, what is the measure of? Round your answer to two decimal places.

Solve for y. 18y - 6 = - 30

Multiply. (3x + 2) (3x - 2) A. x² + 12x - 4 B. 9x² - 12x - 4 c. 9x - 4 D. 9x² + 4

Mr and mrs turner ate 3/4 of a pizza. They want to split the remaining part equally between their two sons how much of the pizza will each son recive

A 16-mb flash drive was sold on sale for $18.50. If this sales price was 81% of the original price, what was the original price?