Explain why the number of times a polynomial function touches the x-axis is not always equal to the number of zeros of the function (Please help)

The sum of the reciprocal of a positive number and the reciprocal of 2 more than the number is 3/4 equation: the number is

Players on the school soccer team are selling candles to raise money for an upcoming trip. each player has 24 candles to sell. if a player sells 4 candles a profit of$30 is made. if he sells 12 candles a profit of $70 is made

Which expression is equivalent to -5(3x - 6/7)