Answer:
i'm not sure what the question is. If it is to correct the grammar given, then it would be Mario and Judith <u>a</u><u>r</u><u>e</u><u> </u>studying for <u>a</u><u>n</u><u> </u>upcoming science exam.
He tells them what can he do to figure out his solution to the problem.
Answer:
By mentioning visitors and railroad advertisements, Cobb highlights that the trees have brought a large number of tourists to the city.
Explanation:
