Just by adding both of these, pens and also pencils, these actually both signify the same word, "pencils".
We do . . . .

(
93) <em>should </em>be your correct answer!
Y=-7 Since we are adding, to find the answer we need to subtract. -2-5=-7
S=sweaters, ST=shirts, SL=slacks.
Add 4S and 6ST and that should add up to 10 in total, then times 10S/ST by 3SL to get 30 as a grand total.
The diameter of the base of the cone is 6 units, thus the radius of it is 3 then.