A scientist observes and counts 155 bacteria in a culture. Later, the scientist counts again and finds the number has increased by 40%.How many bacteria are there now?

Can you guys plz answer this question in order and quickly plz i will give 30 points

Polygon abcde is reflected to produce polygon a′b′c′d′e′. what is the equation for the line of reflection?

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?