Which expression is NOT equivalent to the other three?

A) −9 − 7n + 16n
B) 9(n − 9)
C) n − 9 + 8n
D) 9n − 9

B

Step-by-step explanation:

when you open the brackets, it becomes 9n-18

step-by-step explanation:

3/4 ÷ 3/4

step-by-step explanation:

basically divide any proper fraction with itself to fit the criteria.

so if we are using 3/4, then:

3/4 ÷ 3/4 = 1

so 1 is the quotient.

and the numerators for both these fractions is 3.   and if we divide the numerators:

3 ÷ 3 = 1

we see that quotient is equal to our original quotient as well.