Find the value of x I tried to solve, but ny answer did not make any sense do Im not sure how to ;-; Some help would be lovely :)​

Two numbers have a sum of -19. one number is x. what expression represents the other number?

Titus works at a hotel. part of his job is to keep the complimentary pitcher of water at least half full and always with ice. when he starts his shift, the water level shows 4 gallons, or 128 cups of water. as the shift progresses, he records the level of the water every 10 minutes. after 2 hours, he uses a regression calculator to compute an equation for the decrease in water. his equation is w –0.414t + 129.549, where t is the number of minutes and w is the level of water. according to the equation, after about how many minutes would the water level be less than or equal to 64 cups?

Graph a point. start at your origin, move left 10 units, and then move up three units which ordered pair is the point you graphed