Combining like terms simplify each expression n + 4 - 9 -5n

The tangent of an angle is not which of the following? a) ratiob) proportionc) fractiond) opposite over adjacent

What is the value of 1/3x + 7x when x = 5

Simplify 4 square root of 2 end root plus 7 square root of 2 end root minus 3 square root of 2 . (1 point) 2 square root of 8 8 square root of 2 8 square root of 6 6 square root of 8