Find the value of z.
PLEASE HELP ASAPP
A. 25.25
B. 51
C. 129
D. 76.25

Option A, 25.25

Step-by-step explanation:

x = (54+204)/2 = 129

180-129 = 51

So,

(3z+1+z)/2 = 51

or, 4z+1=102

or, 4z=101

or, z = 25.25

b

step-by-step explanation:

a difference is the result of subtraction. while each of these expressions has subtraction in it, a difference will be the result when subtraction is the last operation applied in the order of operations for the expression. this means subtraction must be outside of the parenthesis. only b has this.

see below

step-by-step explanation:

x+2> 6

subtract 2 from each side

x+2-2 > 6-2

x > 4

there is an open circle at 4 since is it is greater than and the line goes to the right