Arestaurant has a 50 gallon fish tank, the water in the tank evaporates at a rate of -2.5 a week, but the owner adds 3 gallons of water to the tank every 10 days , after the owner added 3 gallons today there were 44 gallons of water in the tank , how much water will be in the tank when the owner adds 3 gallons 70 days from today

Miguel is setting up his new classroom with total floor space of 1,600 ft. the classroom must contain two square tables that are 4 ft by 4 ft, a 2 ft walkway between desks not against the wall or each other, a 2 ft space between the chalkboard and the first row of desks, and miguel's desk, which is 10 ft by 4 ft and is always on the opposite side of the classroom from the chalkboard. click here to see the current configuration of the classroom with desk space for 28 students. miguel needs to redesign the classroom to accommodate 8 more students, and he wants to let the students work in groups. should he place the desks in equal groups of 2, 3, or 4 desks pushed together? explain he should move the desks to groups of because