1. Jack drives 150 miles to work and back each day. he drives an average of 1.5 times faster on the way home from work than he does on the way to work. which expression represents the time he spends driving to work on one day? let x = his speed going to work.

A.) 125/x
B.) 75/x
C.) 150/x
D.) 150x

2. Simplify. 2/3a * 2/a^2.

A.) 4/3a^2; where a does not equal 0.
B.) 1/a^2; where a does not equal 0.
C.) 4/3a^3; where a does not equal 0.
D.) 4/3a^2

3. Find the LCD of the pair of expressions. 5/6x^7y^4, 5/3x^6y^3.

A.) 18x^6 y^3
B.) 6x^6 y^3.
C.) 6x^7 y^4.
D.) 18x^7 y^4.

Question

1.  Jack drives 150 miles to work and back each day. he drives an average of 1.5 times faster on the way home from work than he does on the way to work. which expression represents the time he spends driving to work on one day? let x = his speed going to work.

A.) 125/x
B.) 75/x
C.) 150/x
D.) 150x

2. Simplify. 2/3a * 2/a^2. 

A.) 4/3a^2; where a does not equal 0.
B.) 1/a^2; where a does not equal 0. 
C.) 4/3a^3; where a does not equal 0. 
D.) 4/3a^2

3. Find the LCD of the pair of expressions. 5/6x^7y^4, 5/3x^6y^3.

A.) 18x^6  y^3
B.) 6x^6 y^3.
C.) 6x^7 y^4.
D.) 18x^7 y^4.