Ms. Spilker rode her bike at a rate of 30 miles/2 hours = <<30/2=15>>15 miles/hour.
Therefore, in 0.5 hours, she would have ridden 15 miles/hour * 0.5 hours = <<15*0.5=7.5>>7.5 miles.
So, she rode her bike 7.5 miles in 0.5 hours.
Ms. Spilker rode her bike 30 miles in 2 hours. How far did she ride her bike in 0.5 hours?(1 point)%0D%0AResponses%0D%0A%0D%0A10 miles%0D%0A10 miles%0D%0A%0D%0A7.5 miles%0D%0A7.5 miles%0D%0A%0D%0A12.5 miles%0D%0A12.5 miles%0D%0A%0D%0A5 miles
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