Choose a system of equations with the same solution as the following system:

6x + 2y = −6
3x − 4y = −18



a: 8x + 4y = −4
17x + 2y = −28

b: 12x + 4y = 12
21x + 2y = −36

c: 6x + 8y = −36
15x + 6y = −60

d: 6x + y = 15
15x − y = −9

Angle mno is s rotated 180 degrees counterclockwise about the origin to form angle m’n’o’. which statement shows the measure of angle m’n’o’?

Lems1. the following data set represents the scores on intelligence quotient(iq) examinations of 40 sixth-grade students at a particular school: 114, 122, 103, 118, 99, 105, 134, 125, 117, 106, 109, 104, 111, 127,133, 111, 117, 103, 120, 98, 100, 130, 141, 119, 128, 106, 109, 115,113, 121, 100, 130, 125, 117, 119, 113, 104, 108, 110, 102(a) present this data set in a frequency histogram.(b) which class interval contains the greatest number of data values? (c) is there a roughly equal number of data in each class interval? (d) does the histogram appear to be approximately symmetric? if so,about which interval is it approximately symmetric?

Graph y ≥ -x^2 - 1. click on the graph until the correct graph appears.