Answer:
450
Step-by-step explanation:
3*150 because the 150is your main number or otherwise known as "b" and then 3 is the multiplier so 3 * 150
500 milliliters. Divide 1000 ml (1 liter) by 2 ml to get the answer.
Answer:
33 degrees
Step-by-step explanation
I used arcos, ∠A = arccos((a2 + b2 - c2)/2ab)
= 0.5795 rad = 33.203° = 33°12'11"
Try this option (see the attacthed file; answer is marked with red colour); note, that

answer: 2 m/h.