Which are equivalent expressions? Check all that are true.

(x + y) · x = y + x

(x + y) · 4 = 4x + 4y

(x + y) · x = x · x + y · x

x + y · x = x + yx

x + y · x = 2x + yx

If the graphs of the linear equations in a system are parallel, what does that mean about the possible solution(s) of the system? a. there are infinitely many solutions. b. there is no solution. c. there is exactly one solution. d. the lines in a system cannot be parallel.

Write an equation of the line that passes through 9,2 and is parallel to the line y=5/3x+9

12 out of 30 people chose their favourite colour as blue caculate the angle you would use for blue on a pie chart