Answer:
Continuously
Step-by-step explanation:
Continuously
You need the Law of Sines for this. In our case we have the measure of angle B and side b, we have the measure of angle A and are looking for side a, or x. Setting up the Law using our info, we have

. We will solve for x by multiplying both sides by sin(42):

, first choice above.
Answer: 900
Step-by-step explanation: the basic formula for volume is length × width × height so 12x5x15=900