Find the slope and y-int of the line that is perpendicular to y=-x-3 and passes through the point (3,-2)

Can someone me out here number 4 plz

What is the 17th term in the arithmetic sequence in which a6 is 101 and a9 is 83

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?