How many seconds in an 8 hour work day

Which equation is equivalent to the given expression? -(1/2y+1/4) a. -1/4(1+2y) b. 1/4(2y-1) c. -2(1/4y-1/8) d. 2(1/8-1/4y)

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?

Acell phone provider offers a plan that costs $40 per month plus $0.20 per text message sent or received. a comparable plan costs $50 per month but offers unlimited text messaging. complete parts a. and b. below. a. how many text messages would have to be sent or received in order for the plans to cost the same each month? in order for the plans to cost the text messages would have to be sent or received.