You have a bag of 12 blue marbles and 12 red marbles. each are labeled 1-12. so you have 24 marbles in total (1-12 for each color).
you draw one at random, put it back in the bag, and draw the second one.

what is the probability that the first marble is blue and the second marble is a 12?

Probability that the first marble is blue: 1/2 or 50%

Probably that the second is a 12: 1/12 or 8.3%

Step-by-step explanation:

There's 24 marbles in total with 12 of those being blue. So if you pull out a marble, there's a 12/24 chance of it being blue, which is reduced down to 1/2

Both the red and blue marbles are labeled 1-12, meaning there are two marbles labeled 12. So if you pull out a marble, there's a 2/24 chance that it'll be a 12, which is reduced down to 1/12. Remember that the first marble drawn is put back into the bag, so the second marble's probabilty isn't going to be 2/23

Hope this helps!

2. angles qrt and qst both measures 156 degrees.

step-by-step explanation:  

we have been given a diagram of a circle and we are told that measure of arc qvt is 156 degrees.  

we can see from our given diagram that angle qrt and angle qst subtends to arc qvt.

since we know that angles subtended by the same arc at the circumference are always equal.

by angle subtended by same arc theorem, measure of angle qrt and angle qst will be equal to the measure of arc qvt.

therefore, angles qrt and qst both measures 156 degrees and 2nd statement is the correct choice.

too many. (jk)

31 v bucks

step-by-step explanation:

since you bought 25 on friday and 6 on tuesday, you can just add them up.

25+6=31

check your work.

31-6=25

i hope this !

-yand3r3