Please help, I’m not too smart

x = - 4

Step-by-step explanation:

Given

r(x) = - 5x - 1 and r(x) = 19, then equating the right sides gives

- 5x - 1 = 19 ( add 1 to both sides )

- 5x = 20 ( divide both sides by - 5 )

x = - 4

an advantage of the standard deviation is that it increases as the dispersion of the data increases. e. the interquartile range is preferred when the data are not skewed or no have outliers. an advantage of the standard deviation is that it uses all the observations in its computation.

#15. square

step-by-step explanation:

because quadrilatural (idk how to spell it) means somthing that is not 3d or like, equal sides (or somthing like that   you know what i meanz)

hope this halps!

bai!