Simona's music book includes 50 piano tunes, of which 7 are by bach, and 18 are by mozart.

if simona chooses a tune at random, what is the probability that it is either by bach or by mozart?

Sound travels about 750 miles per hour. a) suppose it takes about 1.5 seconds to hear the echo. how far away is the canyon wall, in feet? for this i got 825 ft b) suppose you stand 1,925 feet from the canyon wall and sound the horn. how long will it take to hear the echo? (i'm stuck on this)

Part 1: use the graph to count the slope of the line that passes through the points (2,1) and (2,0).part 2 in two or more complete sentences, explain why it is not possible to write the equation of the given line in the traditional version of the point-slope form of a line

Mr. lash has 42 pounds of dog food to divide among his dogs. if each dog receives 7/8 pounds of food for each feeding, how many times can mr. lash feed his animals?