When you flip a biased coin the probability of getting a tail is 0.2. How many times would you expect to get tails if you flip the coin 240 times?

48

Step-by-step explanation:

Multiply 0.2 × 240 = 48.

It's a very biased coin, so the outcome will be considerably less than the 120 we would expect from a fair coin.

7 weeks

step-by-step explanation:

convert each fraction to the least common multiple of 20, so 3/4 = 15/20 & 1/10 = 2/20, then divide 15 by 2 and you get a little over 7, so the food will last 7 weeks.