C.
Because the marble is not replaced and that affects the next event where another marble is chosen.
Answer:
Hey there!
Step 1:

Write the equation
Step 2:

take 6 to other side to divide it with-42

after dividing 6 with -42 we will get -7

9514 1404 393
Answer:
152°
Step-by-step explanation:
If two pairs of congruent angles total 360°, then the different angles must total 180°. The other angle measure is 180° -28° = 152°.
The measure of each angle in the other congruent pair is 152°.
12.075
Explain:
Price after mark-up: 10*115% = 11.5
Price after sales tax: 11.5 * 105% = 12.075