Sand falls from an overhead bin, accumulating in a conical pile with a radius that is always three times its height. if the sand falls from the bin at a rate of 120 (ft^3)/min, how fast is the height of the sandpile changing when the pile is 10 feet high? [v =1/3(r^2)h]

In a coastal town, the humidity, measured in grams of water per kilogram of air, increases by 43% for every 1 degree celsius increase in temperature. a scientist observes that the humidity on monday morning is 5.75 grams per kilogram. he wants to know how much the temperature must increase for the humidity to reach at least 49.17 grams per kilogram. let t represent the increase in temperature, in degrees celsius, from monday morning's observation. write an inequality to represent the situation, and use it to determine the desired temperature increase.