[NEED HELP FAST] A poster is shown below:

(The poster is a rectangle with a height of 6in and a length of 18 in)

What are the dimensions if the poster is enlarged by a factor of 7/2?

A. 42in by 126in

B. 3in by 9in

C. 9in by 12in

D. 21in by 63in

Dexter read 11 science fiction books and 5 history books. lena read 9 science fiction books and 4 history books. compare the students’ ratios of science fiction books to history books. 1. determine the ratios’ form:    science fiction books to history books 2. write the ratios as fractions:    dexter: 115; lena: 94 3. rewrite with a common denominator. 4. compare. 5. answer the question. determine which shows the correct comparison of the ratios for this problem.