What is the conditional relative frequency of drivers who obey the law given that they know the law

Aline on the wall and a line on the floor are skew. always, sometimes, or never?

Kelly is a salesperson at a shoe store, where she must sell a pre-set number of pairs of shoes each month. at the end of each work day the number of pairs of shoes that she has left to sell that month is given by the equation s=300-15x , where s is the number of pair of shoes kelly still needs to sell and x is the number of days she has worked that month. what is the meaning of the number 300 in this equation

Hardest math question of all time can you solve the equation. check for extraneous solutions.9∣9-8x∣ = 2x+3