Basic Mathematics for College Students

Chapter 1 Summary and Review 127

Evaluate each expression.

123. 
     
     
     
     124. 
          
     
     
     
     


124. 
     
     
     
     126. 
          
     
     
     
     


125. 
     
     
     
     128. 
          
     
     
     
     


126. 
     


127. 
     


128. 
     
     
     
     132. 
          
     
     
     
     


129. 
     


130. 
     

     5  2 ca 24  3 

     
     

8

2

b 2 d

7 3[3^3 10(42)]

6  2  3  7

52 2(7)

4(6) 6

2(3^2 )

4(4^2  5  3 2) 4

2  3 a

100

10

 22  2 b

23  5  4  2  4 8 (5 4 2)^2

(6 2 3)^2  3 (35 5 3) 5

32  12  3 35  5  3  3

Find the arithmetic mean (average) of each set of test scores.

135.

REVIEW EXERCISES

Test 1234

Score 80 74 66 88

Test 1 2 345

Score 73 77 81 0 69

136.