A) y/x - 5 = 1 b) 2 - y/x = -2 c) -x - y = 0 d) xy - 5 = 1

Question 2
Which of the following equations model direct variation?

a) y + x = 0 b) y - 1 = 3x c) x/y + 2 =1 d) y/x - 6 = -5

Question 3
Find the constant of variation (k).

-y + 9x = 0

correct answer is infinitely many solutions

step-by-step explanation:

2(2x + 3) = -4 + 2(2x + 5)

solving the above equation:

4x + 6 = -4 +4x +10

combining like terms

4x -4x = -4+10-6

0=0

since both sides are 0=0, we end up into true statement it means it has infinite many solutions.

so correct answer is infinitely many solutions

225x²+4=0

225x²=0-4

225x²=-4

x²=-4/225

x=±√-4/225

salary

step-by-step explanation:

actually your concept is wrong

step-by-step explanation:

150% of x =300

150x=300×100

x=(300×100)÷150

x=200