2. The capacity of a swimming pool is given by 620m³ correct to two significant figures. (a) Calculate the lower and upper bounds of the pool's capacity.
(b) Using x cubic metres for the capacity, express the range of values of in which x must lie as an inequality.

Peter applied to an accounting firm and a consulting firm. he knows that 30% of similarly qualified applicants receive job offers from the accounting firm, while only 20% of similarly qualified applicants receive job offers from the consulting firm. assume that receiving an offer from one firm is independent of receiving an offer from the other. what is the probability that both firms offer peter a job?