(9-4,58)•0,5

To solve the expression \((9 - 4.58) \cdot 0.5\):

1. First, calculate \(9 - 4.58\): \[ 9 - 4.58 = 4.42 \]

2. Next, multiply by \(0.5\): \[ 4.42 \cdot 0.5 = 2.21 \]

So, \((9 - 4.58) \cdot 0.5 = 2.21\).