1.) yvette is starting a jewelry business. she spends $120 on shirts and buys 8 necklaces. write an equation to determine how much the necklaces cost if she spent $236.
2.) 2x-3=13
describe it

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