X = 30 and <TVX is 80 degrees
Answer:
No solution.
Step-by-step explanation:

Subtract x from both sides:



Since both sides are not equal, there is no solution.
Answer
b
Step-by-step explanation:
Answer:
d. The average is equal to 12 ounces.
Step-by-step explanation:
In this problem, the drink filling machine must be perfectly calibrated at 12 ounces since it needs to be shut down in cases of overfilling (mean > 12 ounces) and underfilling (mean < 12 ounces). Therefore, the correct approach would be to test if the mean is 12 ounces and the correct set of hypothesis would be:

The correct alternative is d. The average is equal to 12 ounces.