What is the quotient of 2 1/5 and -1/10

Adice is rolled 5 times. how many possible rolls are there? ( determine the number of outcomes using only the fundamental counting principal )

Determine whether the angles in each given pair are coterminal. 744°, -336°

Suppose a pendulum is l meters long. the time,t,in seconds that it tales to swing back and forth once is given by t=2.01