Can someone solve this I dont really understand :( (just fill in the blanks)​

Which expression is equal to (f+g)(x)?

The measurement of one angle of a right triangle is 42° what is the measurement of the third angle? (there is no picture)

Which point on the scatter plot is an outlier? a scatter plot is show. point m is located at 3 and 3, point p is located at 5 and 5, point n is located at 5 and 7, point l is located at 6 and 2. additional points are located at 1 and 3, 2 and 3, 2 and 4, 3 and 4, 3 and 5, 4 and 5, 4 and 6, 5 and 6. point p point n point m point l