Find the missing number in the following series:

4? 17 51 56 168 i know the answer is 12 (someone else said) but i don't know why. Can anyone explain the pattern?

What is the solution to 10x-3y=2

What two numbers multiply to - 90 and add up to 27

Who changed ideas about government, education, and social injustice during the Enlightenment? A. kings B. philosophers C. religious leaders D. government officials

Marco is studying a type of mold that grows at a fast rate. he created the function f (x) = 345 (1.30) ^x to model the number of mold spores per week. What does the 1.

Frank is putting up a wallpaper in his bedroom. His bedroom measures 1 1/8 feet long and 9 3/4 feet wide. What is the perimeter of Franks bedroom?

A blimp travels 765 feet in 1/4 minute, 1,530 feet in 1/2, and 3,060 feet in 1 minute. Is there a proportional relationship between the distance the blimp travels and the time it travels? justify your answer.

Find an equivalent ratio for the ratio 4 : 5. 400/500 10 : 12 48 to 60 20/30

How to solve - 24-1/8p=3/8p?

Find the eccentricity of 4 / (-2 - 6sin (theta)) a) 2 b) - 2 c) 3 d) - 3

Which of the following is the solution 4|x+3|≥8