A car travelled 216km at an average speed of 48km/h. On the return journey the average speed increased to 72km/h. Calculate the average speed, in km/h for the whole journey

Do graduates from uf tend to have a higher income than students at fsu, five years after graduation? a random sample of 100 graduates was taken from both schools. let muf be the population mean salary at uf and let mufsu be the population mean salary at fsu. how should we write the alternative hypothesis?

Which of the following is true about the graph of f(x)=7^x. select all that apply. a= it intercepts the x axis b=it intercepts both axis c=it intercepts neither d=it intercepts the y axis

Which of the following would be a good name for the function that takes the weight of a box and returns the energy needed to lift it?