Julia rode a bicycle 6 miles in 30 minutes. alex rode his skateboard 2 miles in 12 minutes. who traveled at a greater average speed? define an appropriate unit of speed and provide mathematical justification for your answer.

So Julia... 6 miles in 30 minutes. Let's find out how much she travelled in 1 hour. Multiply it by 2, since 30 x 2 = 60 mins = 1 hour, you get 12 miles per hour for Julia.

For Alex... 2 miles in 12 minutes. Multiply it by 5, as 12 x 5 = 60 mins = 1 hour, you get 10 miles per hour for Alex.

Julia travelled faster. She travelled 12 miles per hour while Alex travelled 10 miles per hour.

the least value out of the data shown is 5, maybe if you post a picture with it i could a little more.

step-by-step explanation:

answer: $201

step-by-step explanation: to get the answer, you first get 3 nieces that he sold and multiply it by 67 and get $201, so he earned $201 selling his nieces.