Find the number that should be added to both sides of the equation to complete the square

Let r = 3. what is the value of r + 58?

Which value of m will create a system of parallel lines with no solution? y = mx - 6 8x - 4y = 12

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.