14/12 as a mixed fraction

Determine the difference: 3.2 × 1010 – 1.1 × 1010. write your answer in scientific notation.

Ariel is working at a meat packing plant for 5 nights a week. her regular wage is $11 an hour. she earns tine and a half for any overtime hours. this week she worked 9 hours of over time .how much will ariel earn for overtime this week ?

Last one and the bottom answer choice is y=(x-4)^2+1 you guys!