Solve 7 2/3 − ( 1 2/4 + 3 6/8 )

Brook states that the distance on the line is 4 units. caleb states that the whole line does not have a distance because it continues on forever. vivian states that the line is 6 units long. which distance did brook measure? which distance did vivian measure?

Ammonia molecules have three hydrogen atoms and one nitrogen atom.how many of each atom arein five molecules of ammonia

What is the point of inflection for the function f(x)=2cos4x on the interval (0, pi/2)