Model a percent, a part, and a whole on double number lines in this activity.
[i]Answer these open ended questions on your own or with others to form deeper math connections. [/i]
Joe wants to find 40% of 90. How should he set up the proportion?[br]
Write a proportion equation for this statement: [math]a[/math]% of [math]b[/math] is [math]c[/math].