0,85*1,5x

To simplify the expression \(0.85 \times 1.5x\), you can multiply the numerical coefficients first:

\[ 0.85 \times 1.5 = 1.275 \]

Then, you can write the expression as follows:

\[ 1.275x \]

So, \(0.85 \times 1.5x = 1.275x\).