How do I solve 4[2.5 + 3 (20 + 7)] ?
\(4[2.5+3(20+7)]=4[2.5+3 \cdot 27]=4[2.5+81]=4 \cdot 83.5=334\)
4[2.5 + 3 (20 + 7)]4[2.5 + 3 (27)]4[2.5 + 81]4[83.5]answer: 334