Pierre traveled down a canal by barge from the town of portage (elevations 726 feet) to the town of barrage (elevation 626 feet). on the way, he had to pass through a series of locks. if each lowered the garage 20 feet, how many locks did he pass through?

180

step-by-step explanation:

well there are two answers for that.

1: you need 120 ones then that will equal up to 120.

2: you could also do one 100 and 2 tens.

those are the answers that i have thought of.

i think it would be 42cm

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step-by-step explanatio89