Add f(x) = 4x-5 and g(x) = 2x
(f + g)(x)

Use the graph of the sine function y=2sinθ shown below

Which of the following is an equation of a line parallel to the equation y=4x+1?

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?