Which of the following results in the difference of two squares? Select one:
a. (2x−3y)2
b. (4x−5y)(4x+5y)
c. 4x2(3x−9)
d. (5x+3y)(5x+3y)

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.

If sr is 4.5cm and tr is 3cm, what is the measure in degrees of angle s?

Solve the equation using the zero-product property. -3n(7n - 5) = 0 a. 0, -5/7 b. -1/3, -5/7 c. -1/3, 5/7 d. 0, 5/7