Barter system- A method of exchange when no money is involved.
B and C can't be the answers because they are not exchanging anything.
D can't be the answer either because there is money involved.
So your answer is A) You trade an apple for a banana at school. because you are exchanging something with someone for something else thats not money.
Hope this Helps!!
In some research, the researchers are not able to use random assignments to divide participants among groups. Instead, they compare preexisting groups, which results in a quasi-experimental design.
Random assignments are those which are given as a matter of chance to ensure fairness and equal opportunity for all participants. Here participants forming multiple groups are with similar characteristics. So all groups are the same at the start of the experiment.
A quasi-experimental design applies a non-random method, and subjects are assigned to preexisting groups. There are some situations where true experiments can't be used for practical reasons. In such cases, a quasi-experimental design is a suitable tool.
To learn more about quasi experimental design here
brainly.com/question/28145500
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The answer to this question is that Tommy still lacks a
stable Gender Identity. A gender identity is a person’s concept about his or
herself as male or female. Sometimes a person’s gender identity can be the same
or different on their sex. In Gender identity, it may be a boy, girl,
cisgender, and a transgender.
Answer:
He can avoid going into debt
Explanation:
when John spends less than he makes, it doesn't reduce the tax he pays, neither does it make him earn more money. spending less also does not mean he'd be able to pay for all the goods he wants. it can only help him to stay with budget and make him avoid borrowing to make ends meet.
