What is 40% of 50?

10% of 80 is
10% of 50 is
10% of 120 is
10% of 60 is
What is 35% of 40?

Complete the bar model to find 60% of 70.
Complete the bar model to find 75% of 80.
Complete the bar model to find 20% of 56.
Complete the bar model to find 85% of 80.