What rule changes the input to output numbers?

Input

1

2

3

4

Output

-6

-4

-2

0

A. 2x-10

B. 2x - 8

C. 3x-9

D. 3x-6

There are 20 fish in the pond that have tags. You catch 10 fish, and 4 of them have tags. Which proportion provides the best prediction for the total number of fish in the pond? Let x represent the total number of fish in the pond.

Delia has $945 in 20 dollar and 5 dollar bills. she finds she has 5 times as many 20 dollar bills as 5 dollar bills a) writing x as the number of 20 dollar bills form an equation to show the info b) solve the equation to find the number of bills of

Why is using coins as money easier than using gold bars?

What's the distance between - 2 1/2 and - 5 3/4 as a mixed number

Lucy wants to divide 18.6 by 1.2 in order to estimate the quotient which is the best expression to use? A:10:1 B:10:2 C:20:1 D:20:2

What is (x^3/2y^3/4) ^6 simplified

How many 1/3 pound paperback books together weigh 25 pounds?

Average speed of Car 1 = 35 mph. Average speed of Car 2 = 55 mph. Time elapsed between start of Car 1 and start of Car 2 = 18 minutes. How long before Car 2 overtakes Car 1? A=0.43 B=0.33 C=0.53

4b-4=3 b+3 What's b=

Round 5,406 to the nearest hundred