Evaluate each expression if a = -2, b = 3, c = -12, and d = -4. (Example 3)

bd + c

1. 뜻-(0+ 0)
   

đ - (c+ b)

Evaluate each expression if m = -32, n= 2, p= -8, and r= 4. (Example 3)

1. 음 + m
   
2. 음-(mp+ n)
   

• .12
  

1. The table gives the income and expenses of a small company fer one year. Use the expression
   

1 - E where / represents the

total income and where E represents the total expenses, to find the average difference between the company's income and expenses each month. (Example 4)

Income

Expenses

Amount ($)

84,000

86,400

Test Practice

1. Open Response Five years ago the population at Liberty Middle School was 1,600 students. This year the population is
   

1,250 students. Use the expression N- P where N represents this year's population and where P represents the previous population to find the average change in population each year.