Simplify (3+4i)-(-1-4i)

The scatter plot graph shows the average annual income for a certain profession based on the number of years of experience which of the following is most likely to be the equation of the trend line for this set of data? a. i=5350e +37100 b. i=5350e-37100 c. i=5350e d. e=5350e+37100

5,600 x 10^3 = a) 560 b) 5,000,600 c) 5,600,000 d) 56,000

Which equation results from adding the equations in this system? x+6y=9 and -x+2y=-15