Geysers shoot boiling hot water straight up into the air to very high heights. The photograph shows the boiling water erupting from a famous geyser in Iceland. Approximately how high did the boiling water reach? 100 feet94.85 feet81.06 feet

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?

How do you write something in scientific notation?

Can someone tell me if this is perpendicular? !