Page 101 - Math Course 1 (Book 1)
P. 101

Expressions Containing Variables




                Your Turn!


               Evaluate Expressions


                 Evaluate 12 + a – b if a = 7 and b = 11.           RETAIL
                                                                    The Read It Bookstore is advertising a sale. The
                 A. 30                                              price of hardback books is $9.50 and the price of
                 B. 16                                              paperback books is $4.50. Suppose Emily buys
                 C. 8                                               5 hardback books and 4 paperback books.  Find
                 D. 20                                              the total amount she spent at the book sale.

                                                                    A. $85.50
                  Answer
                                                                    B. $65.50
                                                                    C. $60.50
                                                                    D. $126.00

                 Evaluate 5p – 3m if m = 9, n = 4, and p = 6.        Answer
                 A. 3
                 B. 13
                 C. 22
                 D. 28

                  Answer






                         mn
                 Evaluate          if m = 9, n = 4, and p = 6.
                          p
                 A. 4


                 B.  2  1
                      6
                 C. 5  1
                      3
                 D. 6



                  Answer






                 Evaluate p + (8n – 3m) if m = 9, n = 4, and p = 6.

                 A. 23
                 B. 15
                 C. 14
                 D. 11

                  Answer








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