Question 1174194
a) r = price of 1 kilo of rice
f = price of 1 kilo of fish


10r + 3f <= 600


b) r = 35, so plug that in:


10(35) + 3f <= 600
350 + 3f <= 600
3f <= 250


f <= 250/3 or f <= 83 (rounded down to the nearest peso)