# Trig/Algebra/Pre-Calc Review help solve these by Sunday night

**Question description**

This is a algegra, precalc and tri review. I have the answers provided by the teacher. But I need to study HOW to solve these problems and it's taking forever just to figure out what to look for to study and try to solve because I don't remember. So instead of studying, i'm wasting time trying to figure out how to study. Attached is the questions and answers sheet.

I need someone to provide step by step with explanation of how to solve 9-20 please. Details matter as I will need to study this for test. It would also be helpful if you could include the type of problem it is....for example #8 I think is solving quadratic inequalities but i don't know.

Only need help with 9-20

## Tutor Answer

Brown University

1271 Tutors

California Institute of Technology

2131 Tutors

Carnegie Mellon University

982 Tutors

Columbia University

1256 Tutors

Dartmouth University

2113 Tutors

Emory University

2279 Tutors

Harvard University

599 Tutors

Massachusetts Institute of Technology

2319 Tutors

New York University

1645 Tutors

Notre Dam University

1911 Tutors

Oklahoma University

2122 Tutors

Pennsylvania State University

932 Tutors

Princeton University

1211 Tutors

Stanford University

983 Tutors

University of California

1282 Tutors

Oxford University

123 Tutors

Yale University

2325 Tutors