Tara works out on the treadmill for half an hour. She runs at 8 miles/hour for x hours, jogs at 6 miles/hour for y hours, and walks at 4 miles/hour for z hours. The total distance that she runs, walks, and jogs is 2 2/3miles. If she walks for as long as she runs and jogs combined, which system
of equations represents this situation?

Fiona joins a fruit of the month club. the entry cost was $25 and then she pays $18 per month. if she participates for 8 months, how much will she pay in all? how much in 10 months?

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?

The number 72 lies between what perfect squares