The 3rd option is correct
50 miles = 1 hour
50 x 1 = 50
a. 50 miles x 2 hours = 100 miles
b. 50 miles x 4.3 hours = 215 miles
c. Converting minutes to hours, it would make 20 minutes become 0.333 hours.
50 x 0.333 = 16.65 miles
The diagram of each shape are shown below
The shapes that have two consecutive angles of 90° is square and rectangle, so the correct option is option A