PLSSS HELP HURRY Which equation has a constant of proportionality equal to 1/2 Choose 1
А
y = 2x
B
y = 4x
3
y = 3/6x
D
y= 3/4

Complex numbers multiply √-4 * √-25 and show all intermediate steps. alternative notation is sqrt(-4) * sqrt(-25).

Can someone me with my math problems i have a bunch. i will give brainliest and lots of pleeeaaasssee

Add, subtract, multiply, or divide as indicated. list any restrictions for the variable(s) and simplify the answers when possible. 1) x-2 / x+5 + 3x / 2x-1 2) x+6 / x-6 - x^2 / x+6 3) x+9 / x-4 + x+2 / x^2-11x+28 4) x / x^2-64 + 11 / 2x^2+11x-40 5) 5 / x + 11 / x-3 - x-4 / x^2+2x-15