In 1993, on the coldest day of the year in barrow, the temperature was –57°f. the highest temperature recorded for the year was 72°f. what was the difference between these two extreme temperatures?

Afactory buys 10% of its components from suppliers b and the rest from supplier c. it is known that 6% of the components it buys are faulty. of the components brought from suppliers a,9% are faulty and of the components bought from suppliers b, 3% are faulty. find the percentage of components bought from supplier c that are faulty.