The ratio of people who walk home from school to people who ride the bus home is 2: 7 the number of bus riders is how many times the number of walkers

Sam claims that cos x =sin y if x and y are congruent angels. is sam correct ?

Olga used 100 ounces of flour to make 225 muffins. how many ounces of flour will be used to make 300 muffins?

What is the value of the discriminant of the quadratic equation -2x = -8x + 8 and what does its value mean about thenumber of real number solutions the equation has?