You set up a makeshift greenhouse by leaning a piece of glass against a building. The glass makes a 30 degree angle with the ground. The place where the glass is resting on the building is 4.1 feet off the ground. How long is the piece of glass?

The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a mean of $235 and a standard deviation of $20. according to the standard deviation rule, how much did almost all (99.7%) of the students spend on textbooks in a semester?

Erin bought christmas cards for $2 each to send to her family and friends. which variable is the dependent variable?

The ratio of the height of two similar cylinders is 4 to 3 what is the ratio of their volumes