Help The amount of stretch of a hanging spring versus the mass attached to the bottom of the spring was measured for different masses. The results in the table.

Mass(grams) |2|4|8|10|
Stretch(centimeters)|4|8|16|20|

What is the constant of proportionality between the mass and the amount of stretch?

A. 0.5 centimeters per gram
B. 0.5 grams per centimeter squared
C. 2.0 centimeters per gram
D. 2.0 grams per centimeter squared

go and ask your mom to you

( - 4 , -7 )

all the lines must parallel  

step-by-step explanation:

coordinates of c = ( - 1 , 2 )

3 units left = ( -4 , 2 )

9 units down = ( - 4 , 11 )

the answer is a.

135 and 80

step-by-step explanation:

there is only one way to arrange all the eight relative to each other because they are not distinct. we have

now there are nine places to place an (and not more than one in one place).   because we have four symbols, we need to choose four of these nine places to insert an . order does not matter because the are not distinct.

thus there are 1 · c(9,4) ways, or, if we calculate it,

thus there are 126 ways to form such "words."