3.2.7 analyze the meanings of words

One of the same side angles of two parallel lines is 20° smaller than the other one. find the measures of these two angles.

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 ?

Which steps could be part of the process in algebraically solving the system of equations, y+5x=x^2+10 and y=4x-10