The two lines y+7x=14 and y+5=-7x are:
a)parallel
b)perpendicular
c)neither

()1. how do you find range? 2.the following set of data is to be organized into a histogram. if there are to be five intervals on the graph, what should the length of each interval be? 30, 34, 23, 21, 27, 25, 29, 29, 25, 23, 32, 31

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?

3. a sum of $2700 is to be given in the form of 63 prizes. if the prize is of either $100 or $25, find the number of prizes of each type.