Dawn rode a bicycle 1 mile to a friend's house, traveling at x mph. She and her friend then drove to the grocery store, a distance of 12 miles, traveling at a rate 25 miles per hour faster than Dawn traveled by bicycle. If the entire trip took 3/4 of an hour, which equation describes the trip?

Idon’t know what the answer is i wish i could

Planet earth has a mass of 5.9726x10²⁴ kg.then: 5.9726x10²⁴ kg=100% of the total earth mass.if the water´s mass=5x10-4 % of the total mass, we can solve this problem by the rule of three.5.9726x10²⁴ %*10⁻⁴ %x=(5.9726x10²³ kg)(5*10⁻⁴  %) / 100 %=2.9863x10¹⁹ kganswer:   the mass of the planet´s water would be   2.9863 x 10¹⁹ kg.