Answer:
(1) let pen = x
let pencil= y
i) y ≤ 5x
ii) 5x + 2y ≤ 40
Step-by-step explanation:
at most = maximum
See attachment for math work and answer.
V ≈ 527.79
Formula is V= πr2h
therefore
V = π * 4 * 2 * 10.5
V = π * 8 * 10.5
15393.8cm sorry if im wrong
