Review 1, module 1
1. let f(x) = 2x-3/5, find f(2) = ?
2. find the inverse of f(x) = 2x-3/5
3. graph f(x) = 2x-3/5 and its inverse.
4. what is the domain(x) and range(y) of f(x) = 2x-3/5 and its inverse?
5. show f(f-1(x)) = ?

Lance lived in portugal and brazil for a total of 14 months to learn portuguese. he learned an average of 130 new words per month when he lived in portugal, and an average of 150 new words per month when he lived in brazil. in total he learned 1920 new words. write a system of equations to represent the situation. use x to represent portugal, and y to represent brazil

Reinel saves 30% of every pay check. his paycheck last week was 560$. how much did reniel save last week?

G. how many different 6-letter arrangements can be formed using the letters in the word absent, if each letter is used only once? a. 6 b. 36 c. 720 d. 46,656