Will mark brainliest, need FAST!!! also, make sure to explain why. and note that it’s 30 mph FASTER on the return trip, not 30 mph back. But I will mark brainliest, please answer!!!!!

Will mark brainliest need FAST also make sure to explain why and note that its 30 mph FASTER on the return trip not 30 mph back But I will mark brainliest pleas class=