Please help me with these questions

What term makes it inconsistent y=2x - 4 ?

What is the name of a polygon that has four congruent sides and theses angle measures 60,120,60,120?

In a certain city, the hourly wage of workers on temporary employment contracts is normally distributed. the mean is $15 and the standard deviation is $3. what percentage of temporary workers earn less than $12 per hour? a. 6% b. 16% c. 26% d. 36%