The green trail is 9 3/5 miles long. A group of hiked the trail in 3 1/5 hours, including a half-hour stop for lunch. What was the groups average speed on the hike, not including the stop for lunch, in miles per hour? Round the answer to the nearest hundredth

i got 10.28 but that rounds up to 10.3

the answer is b. 60. each interior angle in 120, so the exterior angle must be 60 in order to add up to 180

step-by-step explanation:

a triangular prism is a 3 dimensional shape composed of triangles and rectangles. it is made from two triangular bases and three rectangular sides.