Can someone me out with this question? (example 1)

The answer to your question is:

x = 10

∡BOC = 52°

Step-by-step explanation:

Data

∡AOB = ∡COD = 25°

∡BOC = (4x + 12)°

∡AOD = 102°

Process

               ∡AOD = ∡AOB + ∡BOC + ∡COD

                 102° = 25° + 4x  + 12 + 25                Solve for x

                 102 - 25 - 12 - 25 = 4x

                 4x = 40

                 x = 40/4

                 x = 10

∡BOC = 4(10) + 12

          = 40 + 12

          = 52°

18

step-by-step explanation:

ik this stuph and i am smart donkey

0.16 or 16%

step-by-step explanation:

lets take a coin for example.

if you toss it twice, it has a 1/4 chance of landing on heads both times because 1/2 * 1/2 is 1/4.

with the cards, the chance of picking dog is 0.4. having two people pick one is like picking a card twice in a row. so 0.4 * 0.4 is 0.16, or 16%