Write an inequality to represent the sum of twice a number and 3 is at least 12

Can someone me and do the problem plz so i can understand it more better

The amount spent on food and drink by 20 customers is shown below what is the modal amount spent ?

The human resources manager at a company records the length, in hours, of one shift at work, x. he creates the probability distribution below. what is the probability that a worker chosen at random works at least 8 hours? probability distribution px(x) 6 hours 7 hours 8 hours 9 hours 10 hours 0.62 0.78 пол