A) 8 cents
Explanation
Step 1
find the rate
[tex]\begin{gathered} \text{rate}=\text{ 40 }\frac{\text{w}}{h} \\ \end{gathered}[/tex]cost
[tex]\begin{gathered} \text{ Cost= 0.20 per 1000 wats hour} \\ \end{gathered}[/tex]hence
total cost = time*rate*consume
[tex]\begin{gathered} \text{ Total cost = 10 hours}\cdot40\frac{w}{h}\cdot0.2\frac{\text{ \$}}{1000\text{ w}} \\ \text{ Total cost =}0.08\text{ dollars} \end{gathered}[/tex]now, to convert from dollars to cents, multply by 100
[tex]\text{ Total cost =}0.08\text{ dollars}\cdot(\frac{100\text{ cents}}{1\text{ dollar}})=8\text{ cents}[/tex]I hope this helps you
