Which variable expression matches the word phrase?

1.
the sum of 12 and the quotient of 9 and a number

2.
the difference of 12 and the product of 9 and a number

3.
the difference of 12 and the quotient of 9 and a number

4.
12 more than quotient of a 9 and number


A.
12 + (9 ÷ y)

B.
12 – (9 ÷ y)

C.
12 – 9y         please help me

Respuesta :

1. sum of 12 and quotient of 9 and a number 
    12 + (9 divided by y)

2. difference of 12 and product of 9 and a number
   12 - (9 * y) or 12 - 9y

3. difference of 12 and quotient of 9 and a number
    12 - (9 divided by y)

4. 12 more then the quotient of 9 and a number
     12 + (9 divided by y)