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Acircle has a circumference of 28.36 units what is the diameter of the circle

Which of the following is the best first step in solving the equation below? 4+2㏒³x=17

Type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar.a city water tank holds 20 gallons of water. a technician empties 25% of the tank. how many more gallons of water must be removed from thetank so that it has 5 of the water that it started with: the technician must removemore gallons of water for the tank to have 5 of the water that it started with.