probability question please help

Q5 The amount of leaves consumed by a koala per day follows some distribution with mean 700 grams and standard deviation 100 grams. Assume that the leaves demand of each koala is independent. Suppose that there are 65 koalas in a koala conservation reserve, and the keepers of the reserve order 46 kilos of fresh leaves every day. (a) On a particular day, what is (an approximation of ) the probability that the leaves supplied by the reserve will not meet the demand of the koalas?{h} Suppose that the amount of leaves consumed by the koalas is independent from day.r to day. What is {an approximation of} the probability.r the reserve will not meet the leaves demand of the koalas for at least 1 of the next 5 days? (c) During the next year, what is (an approximation of ) the probability that the reserve will not meet the leaves demand of the koalas for more than 90 days