\(\frac{75}{100}+\frac{3}{4}\cdot29+75\%\cdot30+0.75\cdot40\)
\(=0,75+0,75\cdot29+0,75\cdot30+0,75\cdot40\)
\(=0,75\cdot\left(1+29+30+40\right)\)
\(=0,75\cdot100\)
\(=75\)
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