Plz explain how to get the answers

Me. i can't figure out this question. give an explanation too. .

True or false: the graph of y=f(bx) is a horizontal compression of the graph y=f(x) if b< 1

The frequency table shows the results of a survey comparing the number of beach towels sold for full price and at a discount during each of the three summer months. the store owner converts the frequency table to a conditional relative frequency table by row. which value should he use for x? round to the nearest hundredth. 0.89 0.90 0.92 0.96