What is the missing value in the solution to the equation y+2=-3(x-4)

Adepartment store purchases screen-printed t-shirts at a cost of $5 per shirt. they mark up the price 150% (making the selling price 250% of the store's purchase price) and put them on the sales floor. every month that a t-shirt doesn't sell, the store reduces the selling price by 25%.

Find solution of the linear equation y = 2/3x + 1/3

What is the radius of the cone in the diagram? round your answer to the nearest whole number