Dorie spends many hours studying on Monday, Tuesday, and Wednesday On Monday nights, Dorie devotes 1
1
13
1
3
hours to studying math
On Tuesday nights, she devotes 2 hours to studying language arts
On Wednesday nights, she devotes 2
2
25
2
5
hours to studying science
If Dorie devotes the same number of hours to studying for these three classes each week, what is the total number of hours Kathleen will study over a three week period?

What is the standard form of -5x^2+2x^4-11+x^3+3x

Write an inequality and solve each problem.for exercises 11 and 12, interpret the solution.

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.