Por favor, preciso desta questão para terminar meu trabalho!

Complete the solution of the equation. find the value of y when x equals to 28 x+3y=28

What happens to the area as the sliders are adjusted? what do you think the formula for the area of a triangle is divided by 2?

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