Please find X! plspls

16.8

Step-by-step explanation:

you get this by taking the ratio of 12:30 and applying it to 42

you get 30 by taking the total of 12 + 18

you then divide 12 / 30 which equals 0.4

you then multiply 0.4 * 42 which gives you 16.8

if you were to solve for the other ratio you would divide 18 / 30

and then take the answer of that, 0.6 and multiply it by 0.6 * 42

then you have the other part of the ratio.

the correct answer is option c.   3

step-by-step explanation:

points to remember

equation of the line with coordinates (x₁, y₁) and (x₂, y₂) is given by,

slope m = (y₂ - y₁)/(x₂ - x₁)

from the figure we can see a line with two coordinates given

to find the slope of given line

here   (x₁, y₁)   = (-1, -1 ) and (x₂, y₂) = (1, 5)

slope m = (y₂ - y₁)/(x₂ - x₁)

  = (5 - -1)/(1 - -1)

  = (5 + 1)/(1 + 1)

  = 6/2 = 3

therefore the correct answer is option c.   3

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