Subtract 30 from both sides.
would it be "-10•3=0-30

How do you create a data set with 8 points in it that has a mean of approximately 10 and a standard deviation of approximately 1?

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.

How many terms does the polynomial x^2 y^2 have