3. Select all equations that can result from adding or subtracting these 2 equations: 5x+y = 12

3x - 5y = 4

a. -2x-4y=8

b. -2x+6y=8

c. 4x-4y=16

d. 4x+4y=16

e. 2x-6y=-8

f. 5x-4y=28

Select the correct answer. employee earnings per month($) 1 1,200 2 2,600 3 1,800 4 1,450 5 3,500 6 2,800 7 12,500 8 3,200 which measure of spread is best for the data in the table? a. range b. quartiles c. interquartile range d. mean absolute deviation