Question

the postage to mail a letter that weighs 0.4 o will cost $_? (type an integer or a decimal)

Answer 1

9514 1404 393

Answer:

  $0.42

Step-by-step explanation:

Look at the function definition to see which part applies when x = 0.4. It will be the first part, which is defined for 0 < x < 1. That part tells you the postage for 0.4 oz is $0.42.