What would i^7 be simplified to?

Need ! easy 6th grade work! i will put as much points as i can! you so much! i’m learning this in math and it’s soo

F(x)=5/6x+3 which of the following is true

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%