Which system of equations has infinitely many solutions?

a. 4x + 2y = 5

-4x - 2y = 1

b. -10x + y = 4

10x - y = -4

c. -8x + y = 2

8x - y = 0

d. -x + 2y = 6

7x - 2y = 12

edit: answer quickly i only have 20 minutes left on this test so i need answers soon !

Deepak plotted these points on the number line. point a: –0.3 point b: – 3 4 point c: – 11 4 point d: –0.7 which point did he plot incorrectly?

Factor the polynomial by its greatest common monomial factor.

❤️ (geometry) does the construction demonstrate how to copy an angle correctly using technology a) yes; the distance between points a and f was used to create circle h b) yes; the distance between points f and g was used to create circle h c)no; the distance between points a and f was used to create circle h d) no; the distance between points f and g was used to create circle h