At Brett's Swimwear, 9 out of the 45 styles at the store are bikinis. What percentage of swimsuit styles at the store are bikinis?

Can someone me with my hwplz(only the circled ones)

Atrain leaves little? rock, arkansas, and travels north at 90 kilometers per hour. another train leaves at the same time and travels south at 80 kilometers per hour. how long will it take before they are 680 kilometers? apart?

Determine domain and range, largest open interval, and intervals which function is continuous.