dont forget to post a new problem guys!

here is one.
Traffic flow is defined as the rate at which cars pass through an intersection, measured in cars per minute. The traffic flow at a particular intersetion is modled by the function F defined by:

F(t)= 82+ 4sin(x/2) for 0t30,

where F(t) is measured in cars per minute and t is measured in minutes.

To the nearest whole number, how many cars pass through the intersection over the 30 minute period?