Math 85 Lab 13                         

 

Student Name:_____________________________                    Date:________________

Instructor's Name:__________________________

 

1.         Evaluate:               when .

 

 

 

2.         Simplify:          

 

 

 

3.         Solve and check:         

 

 

 

4.         Solve and check:         

 

 

 

5.         Solve and check:         

 

 

 

6.         Translate the verbal expression “the difference between seven and twice a number” into a mathematical expression.

 

 

 

7.         Translate “eight more than twice the sum of a number and seven” into a mathematical expression.

 

 

 

8.         Eight decreased by twice a number is four.  Find the number.

 

 

 

9.         Last month Tim Fong paid $128 in state income tax.  This amount was $5 more that 8% of his monthly income.  Calculate Tim’s monthly income.