1. which expression is in lowest term?
A.
[tex] \frac{2x + 1}{2x - 1} [/tex]
B.
[tex] \frac{8x - 2}{2} [/tex]
C.
[tex] \frac{x - 7}{7 - x} [/tex]
D.
[tex] \frac{x { }^{3} + x }{3x {}^{2} } [/tex]

2. which of the following expressions is equal to 1?
A.
[tex] \frac{x + 5}{5 + x} [/tex]
B.
[tex] \frac{x - 5}{5 - x} [/tex]
C.
[tex] \frac{x + 1}{x} [/tex]
D.
[tex] \frac{ - x - y}{x + y} [/tex]

3. what is the reciprocal of
[tex] \frac{a + b}{c} [/tex]
A.
[tex] \frac{c}{a} [/tex]
B.
[tex] \frac{c}{b} [/tex]
C.
[tex] \frac{a + c}{b} [/tex]
D.
[tex] \frac{c}{a + b} [/tex]

4. what is the inverse of division?
A. addition
B. subtraction
C. multiplication
D. quotient

5. the term (x-3) is the product of -1 and ___

A. -x+3
B. -x-3
C. x-3
D. -3-x​