Answer:
A.
Step-by-step explanation:
A) 12 is divided by 4 since the twelve cookies are shared equally between four children.
B) 12 is multiplied by 4 since each band uniform has 12 buttons and there are four band uniforms.
C) 12 is substracted by 4 since four boats will not participate in the race out of a total of 12 boats.
D) 4 is added to 12 since there are already 12 monkeys but now 4 more will arrive.
Since we are asked to compute the probability of two event with "or"
statement, then we will add the probabilities like this:
Denote A the first event and B the second event:

A="Get an even number":

B="Get section B":

Conclusion:
The probability is 5/6
It would be (9,5) or (9 9)
Answer:
m∠CBD=68°
Step-by-step explanation:
BA is perpendicular to BD, meaning they form a right angle (90°)
This means m∠CBD + m∠ABC=90, or they are supplementary.
We have expressions given for these angles, so
4x+52+8x-10=90
12x+42=90
12x=48
x=4
Knowing x=4, we can substitute back into our expression for m∠CBD because that's what we're looking for.
4(4)+52=68
m∠CBD is 68°.
The answer is 25.
Have a good night