Is - two billion dollars is a unit, one unit so it is singular and you use the singular verb
think - scientists is a plural, therefore, you must use the plural verb form of think
Answer:
I agree.
Explanation:
Genevieve Willians is a writer and for that reason, she is a very creative person, since creativity is essential for the accomplishment of her work. In addition, she is a native of Cajun country, proudly presenting and defending cultural values and characteristics.
Cajun country is also very proud of her, for being a very fertile person and with the ease of writing stories that enchant many people.
Answer:
They had found gold in the creek
Explanation: