One drawback of voluntary trade is that it A]requires two groups to use a common language
B]can make one group dependent upon another for necessary goods
C]doesn't occur unless there is a shortage of goods for at least one group
D]forces groups to rely on themselves to produce all the goods they need

Remember soh-cah-toasoh: cah: toa: now, looking at the picture we can see that we have an angle, the hypotenuse and want to find the value of the adjacent side to the angle. so we use cah to find the adjacent angle. plug in what we have: we need to solve for x now so we get it by itself on one side: plug this into your calculator and you'll find that:

Idon't know the answer is

What is the question