If there are 110 students in the 8th Grade, then how many people would you expect to want a black T-shirt?

In what organelle does photosynthesis take place?

In angle pqr find the measure of

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?