(13x+13)° and (19x+13)° what are the measurements

You put the following items into your rucksack. ham 600 g cheese 380 g tomatoes 270 g how much do all the ingredients weigh in total?

Cone a has a surface area of 384 ft2 and cone b has a surface area of 96 ft? . what is the ratio of their volume?

Y+ 2/y is it a polynomial in one variable or not? and if so, why?