Brainliest to first:)

its b

Step-by-step explanation:

B) r=1

Step-by-step explanation:

First you have to isolate the variable by getting the r variables on one side and the numbers on the other. So, add 1 to 11 like:

6r-1+6r=11

    +1      +1

6r + 6r = 12 is the new equation. Combine like terms:

12r=12

Divide both sides by 12 and get r=1.

Hope this helps :)

won't that be plagrisim thought?

step-by-step explanation:

dilation scale factor 2: starting with δabc, draw the dilation image of the triangle with a center at the origin and a scale factor of two. notice that every coordinate of the original triangle has been multiplied by the scale factor (x2). dilation with scale factor 2, multiply by 2.