(a+b)*15 пот a=8,d=3,8

To evaluate the expression \((a + b) \times 15\) with the given values \(a = 8\) and \(d = 3.8\), we first need to define \(b\). Since you provided \(d\) but not \(b\), I will assume you meant to use \(d\) as the value for \(b\).

Let’s calculate the expression assuming \(b = d = 3.8\):

1. Calculate \(a + b\): \[ a + b = 8 + 3.8 = 11.8 \]

2. Now, multiply the sum by 15: \[ (a + b) \times 15 = 11.8 \times 15 \]

3. Perform the multiplication: \[ 11.8 \times 15 = 177 \]

So, the result of \((a + b) \times 15\) is \(177\). If \(b\) is supposed to be a different value, please provide that, and I’ll be glad to recalculate!