Arectangular box has volume 10 cubic meters. the base of the box is a square. the top and the base of the box are made from material which costs 30 dollars per dquare meter. the material for the sides costs 20 dollars per square meter. express the total cost of the box in terms of the length of the edge of the base.

plants store their excess carbohydrate in the form of starch so that it could be used as energy source later on. the excess carbohydrate is converted into starch in the plastid i.e. chloroplast & this process occurs in the presence of sunlight. it is an insoluble polymer of glucose which gets stored in cell organelles named as amyloplasts. in some plants, starch is also stored in roots and embryos.

if x = 1, then the answer is 3.5