5x - 19 < 1 OR -4x + 3 < -6

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?

What is the length and width of a 84.5 square foot rug? will mark

We have 339 ounces of jam to be divided up equally for 12 people how muny ounces will each person get