Can someone help me with these, its simple

Missouri has a shape that is similar to a trapezoid with bases of about 198 miles and 276 miles and a height of about 270 miles. what is the area of missouri in square miles? explain how you found the answer.

On saturday morning, calls arrive at ticketmaster at a rate of 108 calls per hour. what is the probability of fewer than three calls in a randomly chosen minute?

Find the midpoint m of z1=(8+5i) and z2=(12+3i)