(0.5x - 0.6) + (0.75x - 0.1)

What is the solution set of the quadratic inequality x^2-5< or equal to 0

Which value would be a solution for x in the inequality 47-4x< 7

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?