In Lin's drawing, the scale is 5 inches = 8 feet, and the back wall of the lab measures 15 inches. Five computer workstations will be equally spaced along the entire length of that wall. Each workstation measures 4 feet by 4 feet. How far apart are the workstations in Lin's drawing? Explain.

Which equation results from adding the equations in this system? x+6y=9 and -x+2y=-15

Gravel is being dumped from a conveyor belt at a rate of 25 ft3/min, and its coarseness is such that it forms a pile in the shape of a cone whose base diameter and height are always equal. how fast is the height of the pile increasing when the pile is 14 ft high? (round your answer to two decimal places.) ft/min

Mallory has been offers two different jobs. she can baby sit for 6 hours a week and get $8.50 an hour. or she can work at the library for 14 hours a week and make $5.50 an hour. which job will allow her to save the most money after 6weeks?