Sergio increases his target speed to 30 miles per hour. how many more miles does sergio need to ride in 1/4 hour to achieve this target speed?

for me what is finding a good play list and going out because i can not lay down and relax so i usually go to a coffee shop. i also use the gum trick and this actually works. another advice is highlighting subjects it really does me remember certain things

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think the answer would beb