If f(x) = 3 - 1 and g(x) = x + 2, find (f-g)(x)

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?

If rt is greater than ba, which statement must be true ?

Find two numbers if their sum is 91 and the ratio is 6: 7?