Answer:
FOR THE FIRST ONE : 36.4
FOR THE SECOND : 18.9
FOR THE THIRD : X*(0.30)
Explanation:
IN THE FIRST EXAMPLE I MULTIPLIED THE NUMBER BY 0.30 AND THEN ADDED THE NUMBER TO THE MAIN NUMBER
IN THE SECOND I MADE THE SAME BUT I SUBTRACTED INSTAID
IN THE THIRD I WILL MULTIPLY X BY 0.30 AND THEN SUBTRACT THE NUMBER FROM THE VALUE OF X