First, let's calculate 70% of 80 using a rule of three:
Thereby,
[tex]\begin{gathered} x=\frac{80\cdot70}{100}\rightarrow x=56 \\ \\ x=0.7\colon80 \\ x=\frac{70}{100}\colon80 \\ x=\frac{7}{10}\colon80 \end{gathered}[/tex]
Correct answers are:
Option A
Option C
Option E
