Is (1,-4) a sloution to the equation y=-2x

Find the x-intercept and y-intercept of the line. 3x + 5y = −15

Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers

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.