Freddy is two years old than her brother. twelve years ago, she was twice as old as he was. how old were they? equation

The constant of proportionality is always the where k is the constant of proportionality. additionally, you can find the constant of proportionality by finding the ratio for any point onasap

Is the square root of 4 plus the square root of 16 rational?

Write the expression in complete factored form. 5n_(c - 3) - n(c - 3) =