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A roller coaster at a theme park takes fans on an exciting ride. In the first 20 seconds, it carries its passengers up a 30-meter Hill, plunges them down 30 meters, and takes them back up a 15-meter rise. How much higher or lower from the start of the ride are they after these 20 seconds?

Sagot :

Answer:

The answer is -15, because

Step-by-step explanation:

I don't know I have just attempted this question