Simplify (3x – 2y) – (4x + 5y).

7x + 3y

-x - 7y

12x – 10y

7x – 7y

Which formula gives the area of a triangle? a=1/2(b+h)

Yvaries directly as x. y =90 when x=6. find y when x=13

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?