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Last year, Rob set up the Road Runner Race for his school. The race was 1,200 meters long and 188 people asked to run the race. 38 people could not run because they sent in their entry fee too late.

This year, there will be 3 times as many runners as last year.

How many people will run the race this year?

On a scale from 0 to 100 with 10 being not sure, 40 being somewhat sure, 70 being pretty sure, and 100 being very sure.

How sure are you that you solved the first problem?

(The one about Kara's 35–minute car ride.)

On a scale from 0 to 100 with 10 being not sure, 40 being somewhat sure, 70 being pretty sure, and 100 being very sure.

How sure are you that you solved the first problem?

(The one about Adeline and Marisol’s gum.)

On a scale from 0 to 100 with 10 being not sure, 40 being somewhat sure, 70 being pretty sure, and 100 being very sure.

How sure are you that you solved the first problem?

The one about birdhouses.

On a scale from 0 to 100 with 10 being not sure, 40 being somewhat sure, 70 being pretty sure, and 100 being very sure.

How sure are you that you will get these three questions correct?

Okay, now you will solve the word problems.

You can use the scrap paper to do any math to help you solve the problems. Then you will take a picture of that paper. Please do not erase your work. If you decide to try a new way to solve the problem, just cross out the old work and continue working.

When you are done there is an answer space to type your answer.