I need to show work on this question, but im not sure how to solve it

Each unit cost 14p, how much would 942 units cost?

Atown recently dismissed 5 employees in order to meet their new budget reductions. the town had 5 employees over 50 years of age and 19 under 50. if the dismissed employees were selected at random, what is the probability that exactly 2 employees were over 50? express your answer as a fraction or a decimal number rounded to four decimal places.

What is the least common multiple of 8, 12, 7