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 :)

6.5

step-by-step explanation:

you said it was in the question

~courtney

its 60

4 x 12 = 48

3 x 4 = 12

48 + 12 = 60

yeeeet