Unit 5 Lesson 1 Cumulative Practice 1 Which expression equals 27 A B 2 2 2 2 2 2 2 C 2 7 2 2 2 2 2 2 2 D 2 7 2 Evaluate the expression 3 5 when x is 2 3 The graph shows the yearly balance in dollars in an investment account amount in dollars 5 000 4 000 3 000 2 000 1 000 OT 2 0 4 6 8 10 12 14 number of years a What is the initial balance in the account b is the account growing by the same number of dollars each year Explain how you know c A second investment account starts with 2 000 and grows by 150 each year Sketch the values of this account on the graph d How does the growth of balances in the two account balances compare